Search Species
Search for fish species by common or scientific name, or use filters to browse by water type, size, temperament, and difficulty.
Found 654 species
Zamboanga priapiumfish
Neostethus zamboangae
Neostethus zamboangae is a tiny priapiumfish (family Phallostethidae) native to the Philippines, known for males having a reproductive/copulatory organ located under the chin/throat region; it occurs in freshwater and brackish habitats.
Zebra Danio
Danio rerio
Zebra danios are those nonstop little stripey rockets that zip around the top and middle of the tank like they've had three espressos. They're super fun in a group because they chase, spar, and "race" each other without really meaning harm, and that constant motion makes the whole tank feel alive.
Zebra goby
Zebrus zebrus
Tiny Mediterranean goby with bold zebra stripes that spends its day wedged under stones and seagrass like a little tide-pool ninja. It is shy but fun to watch once settled, picking at tiny critters and darting between rock crevices. Keep it in a stable marine setup and it will reward you with lots of peekaboo behavior.
Zebra sole
Zebrias crossolepis
Zebrias crossolepis is a small marine sole with bold zebra-like bands, the kind of flatfish that spends its life glued to the bottom and trying to vanish into sand. It is a subtropical, demersal species from the northwest Pacific (reported from Guangdong, China) and tops out at around 14 cm standard length, so it stays pretty compact for a flatfish.
Zonatus sand catlet
Zaireichthys zonatus
Zaireichthys zonatus is a tiny little Congo River loach catfish that lives in fast, rocky water - it is one of those blink-and-you-miss-it micro predators. In an aquarium it is all about flow, oxygen, and lots of rock crevices, and the coolest part is watching it wedge itself into cracks and scoot around the bottom like a miniature river goblin.
Zucchini catfish
Isorineloricaria spinosissima
This is a truly giant Ecuadorian pleco that can end up longer than your forearm - it is basically a river bulldozer that spends its time grazing algae and plant growth off hard surfaces. The cool (and kind of wild) part is the strong sexual dimorphism with extra-long odontodes, plus those sharp gill-area spines that can snag nets, so you have to handle it with respect.