ome fish commonly found
in freshwater aquariums
have specialized biological
adaptations that make them
stand out among their more ordinary
piscine brethren. These adaptations can be
related to reproduction, defense, feeding
strategies, the environment from which
they originate, the way they breathe, or
(usually) some combination thereof, but
they all make these fishes special and
interesting aquarium residents.
A mudskipper rests on a mangrove root at high
tide in Thailand.
These specializations contribute to making
fishkeeping a strange, wonderful, and ever-entertaining hobby.
AKaiser, nevodka, Anan Kaewkhammul,
Zsschreiner, Panaiotidi / Shutterstock.com