8 Families · 44 Species Profiles

Aquarium Fish Families & Species Guide

Eight scientific families documented with academic rigor — taxonomy, natural history, water chemistry, diet and health for every species.

Osphronemidae — Bettas & Gouramis 🐠 Osphronemidae — Bettas & Gouramis Labyrinth fish with a lung-like organ — bettas, gouramis. Southeast Asia. Beginner Cyprinidae — Goldfish & Carps 🐟 Cyprinidae — Goldfish & Carps Carps and minnows — goldfish, koi, danios. The largest fish family. Beginner Poeciliidae — Livebearers 🦐 Poeciliidae — Livebearers Live-bearing toothcarps — guppies, mollies, platies, swordtails. Beginner Characidae — Tetras ✨ Characidae — Tetras Characins from South America — neon tetras, cardinals, hatchetfish. Beginner Cichlidae — Cichlids 🐠 Cichlidae — Cichlids Parental-care specialists — angelfish, discus, oscars, rams. Intermediate Pomacentridae — Reef Fish 🌊 Pomacentridae — Reef Fish Damselfish & clownfish — coral reef marine species. Intermediate Callichthyidae — Armored Catfish 🧹 Callichthyidae — Armored Catfish Corydoras catfish — peaceful bottom dwellers. Beginner Neocaridina & Invertebrates 🦐 Neocaridina & Invertebrates Shrimp and snails — cherry shrimp, amano, mystery snail. Easy