Tropical Fish Keeping - Aquarium fish care and resources

Tropical Fish Keeping - Aquarium fish care and resources (http://www.tropicalfishkeeping.com/)
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-   -   penguin tetras being aggressive (http://www.tropicalfishkeeping.com/characins/penguin-tetras-being-aggressive-26404/)

phat tony 07-25-2009 01:25 AM

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?

bary trotter 08-01-2009 07:55 PM

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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