Description
This article is from the Aquaria:
Good (and Bad) First Fish; Breeding FAQ, by Dean Hougen and
Elaine Thompson
15 Goldfish
Goldfish are one of the most common fish sold to beginners, but are
particularly poorly suited to this role. The common Goldfish sold as
feeders are generally full of diseases and parasites which may kill
them and other fish they are housed with. Fancy varieties, which have
been selectively bred for centuries to achieve their unnatural
appearances, are subject to a host of problems associated with their
abnormalities.
All Goldfish are cold water fish which do not do well in the lower
oxygen levels found in tropical aquaria, and therefore should not be
housed with tropical species.
 
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aquaria, fish, acquarium, tank, first fish, breeding