1. Mine didn't. I was told that they would. I only have two now, which are about the same size. I think that I might have one of each sex seeing as how they harassed the others but never seem to interact with each other.
I had 3 of them and schooled together. The took over the back of the tank and chased and tormented every new fick I put into the tank. Now my LFS has them I can get some nice fish.
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