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	Hydra
antman08015 Fingerling Posts: 34 Kudos: 17 Votes: 1 Registered: 05-Mar-2007	The hydra is a tiny pest that has tentacles with a venom. Very small fish that come in contact with the hydra are paralyzed by the venom and then held fast by the tentacles until eaten. has Anybody ever heard of these???
Posted 24-Jun-2007 13:43
Joe Potato Fish Addict Kind of a Big Deal Posts: 869 Votes: 309 Registered: 09-Jan-2001	Yup. It's a cnidarian, a phylum which also includes jellyfish and all corals. Joe Potato
Posted 24-Jun-2007 15:44
longhairedgit Fish Guru Lord of the Beasts Posts: 2502 Kudos: 1778 Votes: 29 Registered: 21-Aug-2005	Edited by longhairedgit Yeah its commonly listed in fishkeeping literature, and Ive seen one in a school tank used to raise sticklebacks in, never had one myself though. They look impressive on paper but they are really tiny in the flesh. Some fish gladly eat them, although fry may be at risk. Theyre not a big pest problem in most tanks because relatively common tropical fish will eat them, gouramis, cichlids etc. Its rare that they get to a size to threaten your fish, they get eaten when still small. Theyd really only be a problem in a fry raising tank, most adult fish will just polish them off.
Posted 25-Jun-2007 01:48


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