Aquarium Fish

External Links
34 Best Aquarium Fish Breeds for Freshwater Tank (AquariumFish.org)
AquariumPlants.org – Aquarium Plants for Tropical Fish (AquariumPlants.org)
PetFish - Aquarium Fish Species Index (PetFish.net)
Saltwater Fish - Coral - Invertebrates - Aquariums - Tanks (SaltwaterFish.com)
Exotic Fishkeepers - Fish Supplies, Aquarium, Pet Store (ExoticFish.us)

Category Hierarchies for Aquarium Fish