02-03-2012, 09:03 PM
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penguin tetra fighting
I had 4 Penguin Tetras for about two weeks and they got along with my other fish fine. Then several days ago, one or two started attacking the others, and I thought maybe their numbers were too few, so I went and got 4 more.
After the 4 were initially added, all 8 started to school and seemed to be happy with each other. However, after about 20 minutes, they've started fighting again, and it looks like it's the same two that were fighting before. They also constantly attack my Siamensis Algae Eater whenever it comes close to them. Maybe because the SAE looks similar to them.
What can I do to curtail this? This is in my 40 gallon. I read that they needed space to swim, then I read that they needed heavily planted tanks... Which is it?