10-30-2009, 07:53 PM
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I believe the fighting, is the result of only having two clown loaches.
I started out with 5 clown loaches and lost three. With my turn of bad luck, my plan was to keep the two clowns and not buy anymore. Well, one morning I woke up to find my clowns in a knock out, drag out fight. I broke down and bought a third, but from a different store with more healthy stock. That fixed the problem.
It is recommended to keep them in groups of 5. They are very social fish, that establish pecking orders within their group. Keeping only two, can cause one to dominate over the other, making one miserable.
As for eating the plants, I don't know that adding more will help. Mine are not in a planted tank. (too many other plant eaters) Possible a larger group will keep them from being destructive out of boredom, but maybe you will just end up with more plant eaters. I am sure someone will chime in, on keeping clowns in a planted tank.