Fish Medications

Warning/Disclaimer: I'm not a chemist, biologist, veterinarian, or any other profession related to chemistry or fish biology -- I'm a hobbyist, use any information at your own risk. There are no doubt errors in this table! Dosages are especially suspect!!!

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Common / Proprietary Names {mfg.} Chemical Names / Synonyms CAS # Category Effective Against / Use Prolonged Bath Dosage Comments
Aspirin {Bayer}, Alka-seltzer {Bayer}(1 of 2) acetylsalicylic acid, (2-(Acetyloxy)benzoic acid), [C9H8O4] 50-78-2 Anti-inflammatory, antipyretic, analgesic relieves shock and stress 50 grains/10 gallons prolonged bath For fresh and salt water.
Acriflavin {Kordon}, Velvet Control {Wardley}, Fungus Cure {Aquarium Pharmaceuticals}(1 of 2), Ick Guard {Jungle}(1 of 3), Ick Guard II {Jungle}(1 of 4), Ick Clear {Jungle}(1 of 2), Hole-N-Head Guard {Jungle}(1of 3), Internal Parasite Guard {Jungle}(1 of 3) acriflavin (neutral), trypaflavin, neutroflavine, (3,6-diamino-10-methylacridinium chloride & 3,6-diaminoacridne) 8048-52-0 Antibiotic bacteria, protozoa 5-10 mg/L prolonged bath 7-10 days continuous Kills plants.
Acriflavin Hydrochloride acriflavin hydrochloride, acriflavine hydrochloride, C14H14ClN3HCl+C13H11N3HCl 8063-24-9 Anthelmintic bacteria, protozoa, fungi 10 ppm for 2 hours Not as safe as Acriflavin (neutral).
Chloramine ammonium hydroxide + chlorine, monochloramine, NH2Cl 10599-90-3 Disinfectant     Half-life is more than 5 weeks.
Fungizone, Amphoterin B amphoterin B, C47H73NO17 1397-89-3 Fungicide fungi   none
Ampicillin (sodium) ampicillin (sodium),( 6-((aminophenylacetyl)amino)- 3,3-dimethyl-7-oxo-monosodium salt) 69-52-3 Antibiotic bacteria (gram- & gram+) Not effective, not advised.
Ampicillin Trihydrate ampicillin trihydrate, C16H19N3O4S·3H2O 7177-48-2 Antibiotic bacteria (gram- & gram+) Not effective, not advised.
Aureomycin aureomycin, aureomycin hydrochloride, C22H24Cl2N2O8 64-72-2 Anthelmintic protozoa (Oodinium) 13 mg/L for 5 min ONCE Questionable efficacy.
Bacitracin bacitracin, C66H103N17O16S 1405-87-4 Antibiotic bacteria 60-75 mg/L indefinite Not absorbed systemically.
Brilliant Green (zinc free), Basic Green 1, Malachite Green G brilliant green, ([4-[4-(diethylamino)benzhydrylene]cyclohexa- 2,5-dien-1-ylidene]diethylammonium hydrogensulphate), C27H34N2O4S 633-03-4 Fungicide fungi 0.1 mg/L indefinite Stains skin and fabrics. Is mutagenic, teraogenic. May be toxic to some species. More toxic at higher temperatures.
Dolomite, crushed coral, Calcite, Aragonite calcium carbonate, CaCO3 471-34-1 Fertilizer plant fertilizer   none
Calcium chloride calcium chloride, CaCl2 10043-52-4 Fertilizer plant fertilizer   none
Chloramphenicol, Sodium Succinate, Chloromycetin chloramphenicol, sodium succinate, chloromycetin 56-75-7 Antibiotic bacteria (gram- & gram+) 40 mg/L Not effective as a bath.
Chloroquine Diphosphate chloroquine diphosphate 50-63-5 Anthelmintic protozoa (Cryptocaryon irritans) 10 mg/L indefinite, ONCE Somewhat effective.
Chloroquine chloroquine, (7-Chloro-4-(4-diethylamino-1-methylbutylamino)quinoline), C18H26ClN3 54-05-7 Anthelmintic protozoa (Cryptocaryon irritans) 10 mg/L indefinite, ONCE Somewhat effective.
Chlorotetracycline chlorotetracycline 57-62-5 Antibiotic bacteria (gram- & gram+) 13 mg/L for 5 min ONCE Many resistant strains.
Cupramine {Seachem}, Baslows solution, Copper buffered (copper sulfate + TRIS buffer + EDTA), TRIS buffer (copper sulfate + TRIS buffer + EDTA) copper buffered (copper sulfate + TRIS buffer + EDTA), TRIS buffer (copper sulfate + TRIS buffer + EDTA), copper-TRIS, cupric-tris(hydroxymethyl)aminomethane   Anthelmintic protozoa (Amyloodinium, Cryptocaryon) 0.10 to 0.15 ppm ONCE Toxic to freshwater fish.
Copper Sulfate (chelated), Fungus Guard {Jungle}, Fluke Control {Aquatronics}, CopperSafe {Mardel}, General Cure {Aquarium Pharmaceuticals}(1 of 3) copper sulfate (chelated), copper sulphate (chelated) 7758-98-7 Anthelmintic protozoa 2 mg/L to 8 mg/L, or Total Alkalinity divided by 100% Generally not as effective as non-chelates. Prolonged exposure may cause anemia, gill, kidney and liver damage. Not advised.
Copper Sulfate (citrated) copper sulfate (citrated)   Anthelmintic protozoa 0.15 to 0.20 mg/L for 14 days Toxic to inverts and freshwater fish. Perhaps the most effective form of copper.
Copper Sulfate copper sulfate, copper sulphate, [CuSO4] 7758-99-8 Anthelmintic protozoa 0.0001 mg/L indefinite, continuous Toxic to inverts and live plants. Prolonged exposure may cause anemia. kidney, liver and gill problems over time. Highly toxic to freshwater fish.
Cycloserine, Seromycin cycloserine, (3-Isoxazolidinone, 4-amino-, (R)-) 68-41-7 Antibiotic bacteria (Mycobacteria) 50 mg/gal every other day for 3 treatments Saltwater only. Questionable effectiveness against Mycobacteria (fish TB).
Daraprim, Pyrimthamine daraprim, pyrimethamine, PYM, (5-(4-Chlorophenyl)-6-ethyl-2,4-pyrimidinediamine) 58-14-0 Anthelmintic protozoa (Cryptocaryon) 1 ppm Not effective.
Dichlorvos dichlorvos, C4H7Cl2PO4 62-73-7 Anthelmintic monogenea, digenea crustaceans 0.2 mg/kg continuous (for 4 weeks) none
Dimilin, Parasite Guard {Jungle}(1 of 3) diflubenzuron, (N-[[(4-chlorophenyl)amino]carbonyl]- 2,6-difluoro-benzamide) 35367-38-5 Anthelmintic crustaceans 0.01 mg/L 48 hours. 3 treatments, 6 days apart. 76% of this chemical persists at least one week in pond water.
Dimetridazole, Dimetronidizole, Clout {Aquarium Products}(1 of 3), Breeder's Award Anti-protozoan Flake {Breeder's Award} dimetridazole, (1,2-dimethyl-5-nitroimidazole), C5H7N3O2 551-92-8 Anthelmintic Hexamita 50 mg/L for 24 hours. Repeat daily for 10 days Not very effective.
Doxycycline, Donodox, Vibramycin doxycycline, 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a- octahydro-3,5,10,12,12a- pentahydroxy-6-methyl-1,11- dioxo-2-naphthacenecarboxamide 564-25-0 Antibiotic bacteria (Mycobacteria)   none
Enrofloxacin enrofloxacin, 1-cyclo-propyl-7-(4-ethyl-1-piperazinyl)-6- fluoro-1,4-dihydro-4-oxo-3-quinolone-carboxylic acid, C19H22FN3O3 93106-60-6 Antibiotic bacteria (gram-, Pseudomonas, Aeromonas)   In food, not practical for bath treatments.
Erythromycin, Maracyn {Mardel}, E.M. Tablets {Aquarium Pharmaceuticals} erythromycin, C37H67NO13 114-07-8 Antibiotic Cyanobacter (blue-green algae) 250 mg/ 25 gallons, indefinite Will not harm biological filter at this dose.
Benzocaine ethyl-p-aminobenzoate, C6H4NH2CO2C2H5 94-09-7 Anaesthetic, euthanasia anaesthesia, euthanasia 40-100 mg/l, 200-300 mg/l Recover in aerated anaesthetic- free water.
Panacur fenbendazole, C15H13N3O2S 43210-67-9 Anthelmintic nematodes   none
Flubendazol flubendazol + acetone or DMSO 5%, (methyl{5-(4-fluoro benzoyl)-1H-benzimidazol-2-yl}carbamat), C16H12FN3O3 31430-15-6 Anthelmintic gill and intestinal worms 200 gm/100L Highly toxic with other chemicals in water.
Flumequine flumequine, (9-Fluoro-6,7-dihydro-5-methyl-1-oxo- 1H,5H-benzo-(IJ)-quinolizine-2-carboxylic acid), C14H12NO3F 42835-25-6 Antibiotic bacteria (Aeromonas) 50 mg/L for 30 minutes Absorption increased at lower pH.
Formalin, Formalin {Aquarium Products}, Formalin 3 {Kordon}, Ick Guard II {Jungle}(1 of 4), Rid-Ich+ {Kordon}(1 of 2) formaldehyde (37%), CH2O 50-00-0 Anthelmintic extoparasites (protozoa, monogenea, digenea, crustaceans) 0.4 ml/L up to 1 hour every 3 days in soft water, 0.5 ml/L up to 1 hour every three days in hard water, 15-25 mg/L Effect on fish is highly species specific. Not advised. Wear protective eye wear when using. POISON!
Furan-2 {Aquarium Pharmaceuticals}(1 of 3), Furazone Green (1 of 3) furazolidone, (3-(5-nitrofurfurylideneamino)-2-oxazolidinone), C8H7N3O5 67-45-8 Antibiotic bacteria 500 mg/100L Mutagenic and carcinogenic.
HTH, Calcium Hypochlorite HTH, calcium hypochlorite, Ca.2ClHO 7778-54-3 Disinfectant bacteria, protozoa, viruses, fungi 200 ppm for one hour Will kill fish and inverts. FOR STERILIZATION ONLY!
Lime-It {Aquatronics?}, hydrated lime, lime water?, pickling lime? hydrated lime, calcium hydroxide, CaH2O2 1305-62-0 Disinfectant snail eggs   Removal of snail eggs on plants, additive to portland cement mixtures, stuccos, etc.
Hydrocortisone hydrocortisone, hydroxycorticosterone, C21H30O5 50-23-7   shock 10 mg/L 30 minutes MAXIMUM as needed none
Hydrogen Peroxide (3%) hydrogen peroxide (3%), H2O2 7722-84-1 Fungicide oxygen enhancer, fungi Oxygen: 1 ml/38L/hour, Fungi: 250-500 mg/L May disrupt biological filter with prolonged use.
Iodine (7% tincture) iodine (7% tincture), I2 7553-56-2 Antiseptic   paint on wound and rinse immediately none
Ipropan ipronidazole 14885-29-1 Anthelmintic protozoa (Hexamita) 3-4 mg/L for 6-12 hours ONCE none
Isoniazid, Paragon {Aquatronics}(1 of 6) isoniazid, isonicotinic acid hydrazide, INH, C6H7N3O 54-85-3 Antibiotic bacteria (Mycobacteria) 40 mg/ gal for three treatments, every other day Questionable effectiveness against marine Mycobacteria (fish TB).
Ivermectin ivermectin, C48H74O14.C47H72O14 70288-86-7 Anthelmintic nematodes   Highly toxic.
Kanamycin Sulfate, Kanacyn {Aquatronics}, Paragon {Aquatronics}(1 of 6) kanamycin sulfate, kanamycin sulphate, C18H36N4O11.2H2SO4 25389-94-0 Antibiotic bacteria (gram- & gram+)   none
Kanamycin, Spectrogram {Aquatronics}(1 of 2) kanamycin, C18H36N4O11 8063-07-8 Antibiotic bacteria (Mycobacteria) 750 mg/L for 2 hours OID Known to be absorbed from water in therapeutic levels.
Levamisol, Discomed {Aquatronics}(1 of 5) levamisol, levamisole, tramisol, levamisole hydrochloride, (imidazo[2,1-b]thiazole,2,3,5,6- tetrahydro-6-phenyl-,monohydrochloride), C11H12N2S.HCl 14769-73-4 Anthelmintic nematodes 2 mg/L for 24 hours ONCE Most effective against larval nematodes, swimbladder worms no increase in effectiveness with higher dose. LD50 for eels is 250 mg/. Single treatment kills ~ 50% of nematode load.
Epsom Salts, Discomed {Aquatronics}(1 of 5) magnesium sulfate heptahydrate, MgSO4 10034-99-8 Cathartic constipation 70 g/L for 5 min ONCE Freshwater fish only.
Malachite Green (zinc free), Victoria Green, CI Basic Green 4, China Green, Clout {Aquarium Products}(1 of 3), Fungus Cure {Aquarium Pharmaceuticals}(1 of 2), Ich Cure {Aquatrol}, Super Ich Plus {Aquatronics}(1 of 2), Super Ick Cure {Aquarium Pharmaceuticals}(1 of 2), Ick Guard {Jungle}(1 of 3), Ick Guard II {Jungle}(1 of 4), Ick Clear {Jungle}(1 of 2), Super Ick Cure {Aquarium Pharmaceuticals}(1 of 2), Rid-Ich+ {Kordon}(1 of 2) malachite green chloride, malachite green hydrochloride, benzaldehyde green, aniline green, (N-(4((4-(dimethylamino)phenylmethylene)- 2,5-cyclohexadiene-1-ylidene)-N-methyl-chloride), [4-[alpha-[4-(dimethylamino)phenyl]benzylidene]cyclohexa- 2,5-dien-1-ylidene]dimethylammonium chloride, C23H25N2Cl, C23H24N2HCl 569-64-2 Fungicide fungi 0.1 mg/L indefinite Stains skin and fabrics. Is mutagenic, teraogenic. May be toxic to some species if overdosed. More toxic at higher temperatures.
Malachite green oxalate malachite green oxalate, bis[[4-[4-(dimethylamino)benzhydrylidene]cyclohexa- 2,5-dien-1-ylidene]dimethylammonium] oxalate, dioxalate, C48H50N4O4.2HC2O4 2437-29-8        
Mebendazole, Fluke Tabs {Aquarium Products}(1 of 2) mebendazole, (methyl-5-benzoylbenzimidazole-2-carbamate), C16H13N3O2 31431-39-7 Anthelmintic Pseudodactylogyrus 1 mg/L for 24 hours ONCE none
Australian Tea Tree Oil, Oil of Melaleuca alternifolia, Melafix {Aquarium Pharmaceuticals} Melaleuca alternifolia oil, melaleuca (1% mixture), melaleuca 1%, oil of cajeput 8008-98-8 Antibiotic superficial wounds and sores 5ml/10gal for 7 days Not bactericidal? (contains 14 chemicals with antibacterial properties), does not harm filter bacteria. Non toxic to freshwater fish.
Mercurochrome mercurochrome, merbromin, merbromine, merbromen, (2',7'-Dibromo-5'-[hydroxymercuri]fluorescein), C20H8Br2HgNa2O6 129-16-8 Antiseptic   paint on wounds Do not get into gills.
Merthiolate merthiolate, merthiolate salt, merthiolate sodium, mertorgan, merzonin, merzonin sodium, ethylmercurithiosalicylic acid sodium salt, sodium ethylmercuric thiosalicylate, thimerosalate, thimerosol, thimersalate, thiomerosal, thiomersal, thiomersalate 54-64-8 Disinfectant bacteria, fungi paint on wounds Rinse fish before returning to tank. Do not get into gills.
Methylene Blue, Methylene Blue {Kordon}, Furan-2 {Aquarium Pharmaceuticals}(1 of 3), Furazone Green (1 of 3) methylene blue, (3,7-bis(dimethylamino)phenothiazin-5-ium chloride), methidote antiseptic, methylthionine, methylthionine chloride, methylthioninium chloride, tetramethylthionine chloride, C16H18N3SCl 61-73-4 Antidote cyanide toxicity 2 mg/L prolonged bath up to 5 days, continuous May kill plants. Harmful to biological filter. Will stain hands and fabrics. Effectiveness reduced by organics in tank.
Metronidazole, Flagyl, Metronidazole {Seachem}, Hex-a-Mit {Aquatronics}, Paragon II {Aquatronics}, General Cure {Aquarium Pharmaceuticals}(1 of 3), Hole-N-Head Guard {Jungle}(1of 3), Internal Parasite Guard {Jungle}(1 of 3) metronidazole, (1-(beta-hydroxyethyl)-2-methyl-5-nitroimidazole), C6H9N3O3 443-48-1 Anthelmintic protozoa (Hexamita) 4 mg/L for 3 to 4 days Change water with each treatment. Poorly soluble.
Minocycline, Minocin, Micromycin, Minociclina, Maracyn-Two {Mardel} minocycline, minocycline hydrochloride, (4S-(4a,4aa,5aa,12aa)]-4,7-bis(dimethylamino)- 1,4,4a,5,5a,6,11,12a-octahydro- 3,10,12,12a-tetrahydroxy-1,11- dioxo-2-naphthacenecarboxamide monohy-drochloride), C23H27N3O7.HCl 10118-90-8 Antibiotic bacteria (gram- & gram+, Mycobacteria) 100 mg/10 gallons every other day, 100 mg/L for 1 hr. daily for 7 days Freshwater fish only. Questionable effectiveness against Mycobacteria (fish TB).
MS-222 MS-222, tricaine, amino-benzoic acid ethyl ester methansulfonate, tricaine methsulfonate, H2NC6H4CO2C2H5.CH3SO3H 886-86-2 Anaesthetic, euthanasia anaesthesia, euthanasia 50 to 100 mg/L, 250 to 500 mg/L, 50-330 mg/L 1-40 minutes Use with caution. Dose is species specific.
Naladin {Aquatronics}, Nala-gram {Aquarium Pharmaceuticals} naladixic acid, nalidixic acid, (1-Ethyl-1,4-dihydro-7-methyl-4-oxo-1,8-naphthyridine-3- carboxylic acid), C12H12N2O3 389-08-2 Antibiotic bacteria (gram-)   none
Paragon {Aquatronics}(1 of 6) neomycin 1404-04-2 Antibiotic bacteria   none
Neomycin Sulfate, Neomycin {Aquatronics}, Discomed {Aquatronics}(1 of 5) neomycin sulfate, neomycin sulphate, C23H46N6O13 1405-10-3 Antibiotic bacteria (gram-) 2 g/100L none
Furanace, Furanase {Aquarium Products} nifurpirinol, (ethyl 4-(2-pyridinylcarbonyl)-3-isoxazolecarboxylate), 2-[3-(5-nitro-2-furanyl)-1-[2-(5-nitro-2-furanyl)ethenyl]-2-propenylidene]hydrazine carboximidamide:[[3-(5-nitro-2-furyl)-1-[2-(5-nitro-2-furyl)vinyl]allylidene]amino]gaunidine {AP label}, C12H10N2O4 13411-16-0 Antibiotic bacteria (gram- & gram+, Flavobacterium columnare), protozoa 0.05 to 0.1 mg/L indefinite bath in darkened tank Photo-sensitive! Non-foodfish only. Known to be absorbed from water in therapeutic levels. Mutagenic and carcinogenic.
Nitrofurantoin nitrofurantoin, (1-[(5-nitrofurfurylidene)amino]imidazolidine-2,4-dione) 67-20-9 Antibiotic bacteria (gram+) 100 mg/30L Mutagenic and carcinogenic.
Nitrofurazone, Furacin, Binox {Jungle}(1 of 2), Furan-2 {Aquarium Pharmaceuticals}(1 of 3), Spectrogram {Aquatronics}(1 of 2), Paragon {Aquatronics}(1 of 6), Super Ick Cure {Aquarium Pharmaceuticals}(1 of 2), Furazone Green (1 of 3), Pepso Food {Jungle}(1 of 2) nitrofurazone, nitrofural, furacin, (2-[(5-nitro-2-furanyl)methylene]-hydrazinecarboxamide), C6H6N4O4 59-87-0 Antibiotic bacteria 2-10 ppm as a 24 hour bath Not effective against Ich. Mutagenic and carcinogenic.
Nitromersol, Ick Guard {Jungle}(1 of 3), Ick Guard II {Jungle}(1 of 4) nitromersol, (5-methyl-2-nitro-7-oxa-8- mercurabicyclo[4.2.0]octa-1,3,5-triene) 133-58-4 Disinfectant     none
Nystatin Ointment nystatin ointment, C47H75NO17 1400-61-9 Fungicide fungi paint on Fungus none
Oxolinic Acid oxolinic acid, (5-ethyl-5,8-dihydro-8-oxo-1,3- dioxolo[4,5-g]quinoline-7-carboxylic acid), C13H11NO5 14698-29-4 Antibiotic bacteria (gram-, Pseudomonas, Aeromonas) none In food, not practical for bath treatments. There is now widespread resistance.
Oxytetracycline Hydrochloride oxytetracycline hydrochloride, C22H24N2O9.HCl 2058-46-0 Antibiotic bacteria 100 mg/L for 1 hr. daily for 7 days Freshwater fish only.
Oxytetracycline, Terramycin, Breeder's Award Anti-biotic Flake {Breeder's Award} oxytetracycline, hydroxytetracycline, 2-naphthacenecarboxamide, 5-hydroxytetracycline, C22H24N2O9 79-57-2 Antibiotic bacteria (gram- & gram+) 100 mg/L for 1 hr. daily for 7 days Freshwater fish only. Reduced effectiveness in hard water. Immunosuppressive in some fish species.
Ozone ozone, O3 10028-15-6 Disinfectant bacteria, protozoa, viruses, oxidizes organics 0.1 mg/L continuous. Use with caution. Can burn mucus membranes. Degrades rubber. Run ozonated water through carbon before returning to tank. Concentration must be checked daily or ozonator should be regulated by an ORP meter (preferred).
Penicillin {Aquatronics} penicillin, benzylpenicillin, C16H18N2O4S 61-33-6 Antibiotic bacteria (Mycobacteria)   none
Phenoxyethanol, 2-Phenoxyethanol, Phenoxyethol, 2-Phenoxyethol phenoxyethanol, 2-phenoxyethanol, phenoxyethol, 2-phenoxyethol, arosol, dowanol EP, dowanol EPH, emery 6705, ethylene glycol phenyl ether, ethylene glycol monophenyl ether, phenoxetol, rose ether, beta-phenoxy-ethyl alcohol, C8H10O2 122-99-6 Anaesthetic, fungicide anaesthesia, fungi 1.5 ml/l, First dissolve the fluid alcohol, 1:10 solution, then mix to the desired concentration ;100 mg/L as a 1 hr. bath, ONCE none
Pimafix {Aquarium Pharmaceuticals} Pimenta racemosa oil, bay oil, myrcia oil, west indian bay oil 8006-78-8 Antibiotic bacteria 5ml/10gal for 7 days Some bacteriostatic and bactericidal effects (contains 19 chemicals with antibacterial properties). May be toxic to Plecos.
Discomed {Aquatronics}(1 of 5) piperazine, antepar, tripiperazine dicitrate, multifuge, oxucide, pipizan citrate, pinrou, exopin, parazine, helmezine, and arpezine, (1-(2-aminoethyl)piperazine), (N-(2-aminoethyl)piperazine), (2-piperazinoethylamine), (1-piperazine ethanamine), C6H15N3 140-31-8 Anthelmintic ascarid parasites, Oesophagostomum spp., hookworms, strongyles, whipworms, flatworms   Ascarid parasites in all species and also Oesophagostomum spp., there is a variable activity against hookworms and strongyles, but little effect against whipworms or flatworms.
Pearl ash, Flow-K {Arm & Hammer} potassium bicarbonate, potassium acid carbonate, potassium hydrogen carbonate, KHCO3 298-14-6 Fertilizer plant fertilizer   Flow-K is a substitute for baking soda for people on sodium restricted diets (~$1/#).
Potassium chloride, Muriate of potash potassium chloride, potassium muriate, dipotassium dichloride, potassium monochloride, potash muriate, KCl 7447-40-7 Fertilizer plant fertilizer   DO NOT USE: reacts with water to form Potassium hydroxide (KOH), a very strong base. The concentration of potassium chloride in muriate of potash is expressed as a corresponding concentration of potassium oxide (K2O).
Potassium nitrate potassium nitrate, KNO3 7759-79-1 Fertilizer plant fertilizer   none
Potassium Permanganate potassium permanganate, KMnO4 7722-64-7 Anthelmintic extoparasites (bacteria, protozoa, crustaceans, fungi) 2 mg/L min. 4 hours, 10 mg/L for 30min. Both only once a week. Only in acidic water. Can be toxic to goldfish. Can cause massive fish deaths. Not advised.
Potasium phosphate monobasic potassium phosphate monobasic, phosphoric acid monopotassium salt, potassium dihydrogen phosphate, KH2PO4 7778-77-0 Fertilizer plant fertilizer   none
Potassium sulfate potassium sulfate, K2SO4 7778-80-5 Fertilizer plant fertilizer   none
Povidone, Super Ick Cure {Aquarium Pharmaceuticals}(1 of 2) povidone, polyvinylpyrrolidone, (1-ethenyl-2-pyrrolidone polymer) 9003-39-8 Disinfectant     none
Povidone-Iodine, Betadine povidone-iodine, polyvinylpyrrolidone-iodine, (1-Vinyl-2-pyrrolidinon iodine, poly[(2-oxo-1-pyrrolidinyl)ethylene] iodine), 25665-41-8 Disinfectant Not advised.
Praziquantel HCL, Droncit praziquantel, praziquantel HCL, (2-ciclohexylcarbonyl-1,2,3,6,7,11b- hexahydro-4H-pyrazino[2,1-a ] isoquinolin-4,1), 55268-74-1 Anthelmintic trematodes, cestodes, Dactylogyrus, Diplozoon, Proteocephalus, tapeworms 2 mg/L for 24 hours Levels can cause toxicity in Corydoras catfish. Not advised for juvenile fishes. Fish may appear narcotized after dip. Not easily dissolved in water. Repeat treatment at weekly intervals for 3 weeks for egg laying monogenes. Does not effect nitrifying bacteria.
Aralen primaquine phosphate, primaquine diphosphate, primaquinium phosphate, (N4-(6-Methoxy-8-quinolinyl)-1,4-pentanediamine) 90-34-6 Anthelmintic protozoa (Cryptocaryon) 15 mg/gal every other day for 5 treatments Salt water only.
Quinacrine, Atabrine quinacrine, quinacrine hydrochloride, atabrine, atabrine hydrochloride, 6-chloro-9-((4-(diethylamino)-1- methylbutyl)amino)-2-methoxyacridine dihydrochloride, arichin, atabrine dihydrochloride, chemiochin, chinacrin, chinacrin hydrochloride, crinodora, erion, italchin, malaricida, mecryl, mepacrine dihydrochloride, methoquine, metochin, metoquin, palacrin, palusan, C23H30ClN3O+2HCl 69-05-6 Anthelmintic protozoa (Cryptocaryon irritans) 10 mg/L for 3 days, continuous Breaks down in water quickly.
Quinaldine quinaldine, 2-methylquinoline, C6H4N:C(CH3)CH:CH 91-63-4 Anaesthetic anaesthesia 20:1 with ethyl alcohol Not advised due to alcohol content.
Quinine Hydrochloride, Super Ich Plus {Aquatronics}(1 of 2) quinine hydrochloride (anhydrous) 130-89-2 Anthelmintic protozoa (Cryptocaryon irritans) 10 mg/L for 3 days, continuous Breaks down in water quickly.
Quinine Sulfate quinine sulfate, quinine sulphate (anhydrous) 804-63-7 Anthelmintic protozoa 30 mg/L for 1 hour daily for 3 days Breaks down in water quickly.
Simazine simazine, (6-Chloro-N,N'-diethyl-1,3,5-triazine-2,4-diamine), C7H12ClN5 122-34-9 Algicide, herbicide   0.5-2.5 g/m3 indefinite Food fish use. Will kill trees.
Baking Soda, Alka-seltzer {Bayer}(1 of 2) sodium bicarbonate, sodium acid carbonate, sodium hydrogen carbonate, bicarbonate of soda, carbonic acid monosodium salt, carbonic acid sodium salt, monosodium hydrogen carbonate, monosodium carbonate, soda mint, sodium hydrocarbonate, CHNaO3, NaHCO3 144-55-8 Anaesthetic, euthanasia, fertilizer anaesthesia, euthanasia, plant fertilizer euthanasia: 4 tablets/500ml Via CO2.
Salt, Paragon {Aquatronics}(1 of 6), Discomed {Aquatronics}(1 of 5), Binox {Jungle}(1 of 2), Parasite Guard {Jungle}(1 of 3), Hole-N-Head Guard {Jungle}(1of 3), Internal Parasite Guard {Jungle}(1 of 3) sodium chloride (non-iodized), NaCl 7647-14-5 Anthelmintic, antidote extoparasites (protozoa, fungi, Epistylis), osmoregulatory stress, nitrite toxicity 1-3 g/L indefinite, to reduce nitrite toxicity: 6xNp-Clp=Cln where Clp=chloride present in ppm, Np=nitrite (NO2) present in ppm and Cln=chloride needed in ppm. Subtherapeutic level, reduce nitrite toxicity.
Sodium Chlorite sodium chlorite, ClHO2.Na 7758-19-2 Antibiotic bacteria, protozoa 2-5 ppm indefinite Freshwater use only. May kill plants.
Amquel {Kordon}, AquaSafe {Tetra}, ClorAm-X {Reed Mariculture} sodium hydroxymethanesulfonate, CH4O4S.Na 870-72-4 Dechlorinator chlorine, chloramine   OK vs. chloramine.
Bleach sodium hypochlorite, NaOCl 7681-52-9 Disinfectant bacteria, protoza, viruses, fungi. 200 ppm for 1 hour Used to sterilize tanks and equipment. WILL KILL FISH AND INVERTS.
Super Sulfa {Aquatronics}(1 of 5) sodium lauryl sulfate, sodium dodecyl sulfate, dodecyl sodium sulfate, SLS, lauryl sodium sulfate, sodium laurylsulfate, sulfuric acid monododecyl ester sodium salt, C12H25NaO4S 151-21-3 Antibiotic bacteria   none
Fleet enema sodium phosphate tribasic, trisodium phosphate, sodium orthophosphate, sodium phosphate, trisodium orthophosphate, phosphoric acid trisodium salt, Na3O4P 7601-54-9 Fertilizer plant fertilizer   none
Sodium Sulfacetamide, Triple Sulfa (1 of 3) sodium sulfacetamide 127-56-0 Antibiotic bacteria   none
Sodium Sulfadiazine, Tribrissen (1 of 2), Super Sulfa {Aquatronics}(1 of 5) sodium sulfadiazine 547-32-0 Antibiotic bacteria, protozoa (Cryptocaryon) 100 to 250 mg/L as a long duration bath, or 250 mg/10 gallons as a long duration bath? Will precipitate in water <pH 9. Repeat each day for 5 days. Good for one day. Questionable effectiveness against Cryptocaryon.
Sodium Sulfamethazine, Triple Sulfa (1 of 3), Super Sulfa {Aquatronics}(1 of 5) sodium sulfamethazine, sodium sulfadimidine, sulfadimidine sodium sulfamethazine sodium sulfamethazine sodium salt, (4-Amino-N-(4,6-dimethyl-2- pyrimidinyl)benzenesulfonamide, monosodium salt) 1981-58-4 Antibiotic bacteria 100 mg/L for 1 hour daily for 7 days none
Sodium sulfathiazole, Triple Sulfa (1 of 3), Super Sulfa {Aquatronics}(1 of 5), Pepso Food {Jungle}(1 of 2) sodium sulfathiazole 144-74-1 Antibiotic bacteria (gram- & gram+), protozoa (Cryptocaryon) 250 mg/10 gallons as a long duration bath Will precipitate in water <pH 9. Repeat each day for 5 days. Good for one day. Questionable effectiveness against Cryptocaryon.
Stress Coat {Aquarium Pharmaceuticals}, Chlorinex {Kent}, Pro Tech Coat Freshwater {Kent}, NovAqua??? sodium thiosulfate, Na2O3S2 7772-98-7 Dechlorinator chlorine 1 gram/ 10 gallons Breaks the ammonium-chlorine bond of chloramine, releases ammonia!
Super Sulfa {Aquatronics}(1 of 5) sulfamerazine, (2-Sulfanilamido-4-methylpyrimidine) 127-79-7 Antibiotic bacteria   none
Sulfamethazine, Biosphere AntiBacteria {Mardel}(1 of 2) sulfamethazine, sulfadimethylpyridine, sulfadimidine, sulfamidine, sulphadimethylpyrimidine, sulphadimidine, (4-Amino-N-(4,6-dimethyl-2- pyrimidinyl)benzenesulfonamide) 57-68-1 Antibiotic bacteria   none
Sweet Water sweet water   Anthelmintic extoparasites (protozoa) immerse marine fish for 5 to 10 min Not for fishes with lesions.
Tetracycline HCL tetracycline HCL, tetracycline hydrocholride, 4-(dimethylamino)-1,4,4A,5,5A,6,11,12A- octahydro-3,6,10,12,12A- penta-hydroxy-6-methyl-1,11- dioxo-2-naphthacenecarboxamide hydrochloride, C22H24N2O8.HCl 64-75-5 Antibiotic bacteria (gram- & gram+)   none
Tetracycline, T. C. Capsules {Aquarium Pharmaceuticals}, Tetracycline {Aquatronics} tetracycline, C22H24N2O8 60-54-8 Antibiotic bacteria (gram- & gram+, Mycobacteria) 100 mg/L for 1 hr. daily for 7 days Freshwater fish only.
Trichlorfon, Metriphonate, Metrifonate, Masoten, Dylox, Neguvon, Clout {Aquarium Products}(1 of 3), Dyacide {Aquatronics}, Parasite Guard {Jungle}(1 of 3), Trifon {Kordon}, Fluke Tabs {Aquarium Products}(1 of 2), Paragon {Aquatronics}(1 of 6), General Cure {Aquarium Pharmaceuticals}(1 of 3), Life Bearer {Aquarium Products} trichlorfon, trichlorofon, trichlorphon, metrifonate, foschlor, chlorofos, dimethyl phosphonate, 0,0-dimethyl-2,2,2-trichloro-1-hydroxyethylphosphonate, dimethyl2,2,2-trichloro-1-hydroxyethyl-phosphonate, C4H8Cl3O4P 52-68-6 Anthelmintic trematodes, crustaceans 0.5 mg/L (Dylox: 0.25 mg/L) for 1 hr. every 5 days Potentially carcinogenic. Doses are in active ingredient. Water to be discarded should be brought to pH 11.
Tribrissen (1 of 2), Biosphere AntiBacteria {Mardel}(1 of 2) trimethoprim, diaminopyrimidine, (5-((3,4,5-trimethoxyphenyl)methyl)-2,4-pyrimidinediamine), C14H18N4O3 738-70-5 Antibiotic bacteria   none
Vancomycin vancomycin, vancomycin hydrochloride 1404-93-9 Antibiotic bacteria (gram+, Cocci) 2.0 mg/l for one hour, ONCE Has a shelf life of two weeks when in solution.
Water water, hydrogen oxide, dihydrogen oxide, H2O 7732-18-5 Hydration prevention of fish desiccation immerse freshwater fish continuously Mineral additives required.

Last Updated on 10/13/05