penguin tetras being aggressive - Tropical Fish Keeping - Aquarium fish care and resources

 
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post #1 of 2 Old 07-25-2009, 01:25 AM Thread Starter
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penguin tetras being aggressive

hey there, i just put 4 new head and tail light tetras into my 30 gallon tank. i originally had 3 head and tail light tetras and 4 penguin tetras and everything was fine, until now. the penguins are going mad and chasing all the new fish around and acting really aggressively. i remember reading that they where supposed to be peaceful fish! has anyone else seen this sort of behavior?
phat tony is offline  
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post #2 of 2 Old 08-01-2009, 07:55 PM
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the pegunins could be in the breeding mood or one of the head and tail light tetras was male you might never of had a male h and t lights tetra that was male they might all of ben females before
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