Neon Tetras Fighting

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Newzpix

Aquarium Advice Apprentice
Joined
Jan 6, 2006
Messages
28
Location
Reston, VA
I had 5 Neon Tetras left from an older tank, so I put them in a nearly empty 45-gallon. They started fighting over territory.

Today I added 6 more Neons.

They schooled for a couple of hours, but now their all fighting.

I've not had this issue with Neon Tetras before. What is their issue?
 
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