06-09-2011, 09:18 AM
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Originally Posted by Teishokue
schooling is a defensive technique, they usually dont school untill stressed by a predator/others. other than that they will expand the tank and "spar"
I don't think that's entirely accurate - yes, shoaling fish are better protected by their numbers when schooling, but it is as much a social arrangement for other factors as well such as mating, finding food...
The Neon Tetras in my tank will school at various times, especially it seems in the early evening hours and there are no threats against them in this tank.
I now think that the sparing is more like play fighting I think.
(When yer a little Neon Tetra, you gotta have attitude!)