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Well, an employee recommended 3 LongFins for my tank instead of 5-6 so I have 3, is that bad?
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Yes, they will. It's natural. With a proper school (see my answer to your other question) the aggression should be minimal. It's just their way of getting along.
~Amber
Sandra
there will be some chasing and nipping and it will be at it's worst early on because they're establishing dominance.
Make sure you have at least 6 or they'll be nervous and the nipping will be really bad