Tank 23 (species list in comments)

Harlequin rasbora (Trigonostigma heteromorpha)
Cardinal tetra (Paracheirodon axelrodi)
Diamond tetra (Moenkhausia pittieri)
Molly (''Black molly'') (Poecilia sphenops f. domestica)
Green swordtail (Breeding form) (Xiphophorus hellerii) (not signed)

Signed, but not seen:
Endlers guppy (Poecilia wingei)
Common platy (Xiphophorus maculatus f. domestica)*
Three striped dwarf cichlid (Apistogramma trifasciata)
Pearl gourami (Trichopodus leeri)*

* seen in other tanks but not this one

Another beautiful tank! The Harlequin Fish look great against the dark gravel and brilliant green plants.