Amazon theme, occupants are:
7 Pterophyllum scalare "Peruvian Angelfish"
9 Hyphessobrycon serpae "Serpae Tetras"
11 Corydoras arcuatus "Arched Corys"
1 Corydoras aeneus var. "without gold stripes"
2 Panaque maccus "Clown Plecos"
6 Otocinclus vittatus "Striped Otocinclus"
6 Caridina japonica "Yamato Shrimp"
Syngonium podophyllum "Arrowhead Vine"
Echinodorus bleheri "Broad-leaved Sword"
Echinodorus parviflorus "Black Sword"
Echinodorus osiris "Red Sword"
Lilaeopsis brasiliensis "Micro Sword"