| Badis - badis | |
| Balantiocheilus - melanopterus, melanopterus | |
![]() | Barbodes - schwanenfeldi |
![]() | barbus - everetti, fasciolatus, hulstaerti |
![]() | Bardobes - fasciatus |
![]() | Baryancistrus - sp. (L018), sp. (L047), sp. (L142) |
| Beaufortia - Leveretti | |
| Bedotia - geayi | |
| Belonesox - belizanus | |
![]() | Belontia - hasselti, signata |
![]() | Betta - akarensis, albimarginata, anabatoides, antoni, bellica, breviobesus, brownorum, coccina, edithae, foerschi, imbellis, picta, pugnax, smaragdina, splendens, taeniata, tussyae, unimaculata |
![]() | Biotodoma - cupido |
| Blood - parrot cichlid | |
![]() | Boehlkea - fredcochui |
![]() | Boraras - maculatus, micros, urophthalmoides |
| Botia - beauforti, berdmorei, helodes, Kubotai, lecontei, lohachata, macracantha, modesta, morletti, sidthimunki, striata | |
![]() | Boulengerella - maculata |
![]() | Brachydanio - frankei |
![]() | Brachygobius - nunus |
![]() | Brochis - britskii, multiradiatus, splendens, splendens |
![]() | Brycinus - longipinnis |
![]() | Bunocephalus - coracoideus, knerii |
Červeně jsou označené mořské ryby.