Fish

PetMD Editorial

 Kidney DisordersThere are few major kidney and urinary tract disorders seen in fishes. Of these the main kidney and urinary tract disorders are Renal Dropsy, Carp-dropsy complex, and Proliferative kidney...

PetMD Editorial

By Kali Wyrosdic When most people think of goldfish, they don’t realize that this common pet has a rather noble history. Goldfish as we know them today are all descendants of the Prussian carp, native...

PetMD Editorial

As reef aquarists progress in the hobby, their eyes and hearts are drawn to increasingly unusual animals. Indeed, after mastering the care of corals (no small feat in itself), one might find themselves...

PetMD Editorial

Jessie M Sanders, DVM, CertAqV When keeping aquarium fish, a lot of time and research goes into what is normal versus what is abnormal. It can be challenging to distinguish. Among these challenges are...

PetMD Editorial

How Fish ReproduceReproduction in fishes varies widely from species to species. In every case, the fish must use an amount of metabolic energy required to reproduce (i.e., to actually spawn and look after...

PetMD Editorial

Image via Brian Kinney/Shutterstock By Helen Anne Travis The first month is the most critical time for new pet fish. The adjustment to a new fish aquarium and tank can be stressful for pet fish, but with...