major aggression - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 2 Old 01-08-2008, 10:20 PM Thread Starter
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major aggression

Hi Guys,

I usually don't post, just read post (your post are very helpful)

But I need some help today! My fish JUST got super aggressive towards one another. I have a yellow lab, 2 bala sharks, 2 red zebras (male and female) and a few mollies. (in a 55 gallon) ALL my fish have always gotten along fine. But today, after I fed them, I threw in about 2 algae waffers, and the temperment went up. The bala sharks are chasing and nipping at each other, the female zebra is chasing the yellow lab, the male zebra is also chasing the yellow lab and the female zebra (which he NEVER does), the yellow lab is chasing the mollies AND the mollies are chasing each other. This is very unusual behavior for my tank. My tank is a mad house today! Anyone have any idea whats going on? Aside from a 20% water change (3 days ago) and adding a few algae waffers today, I've done nothing different.

any help would be greatly appreciated
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post #2 of 2 Old 01-09-2008, 12:09 AM
Obviously, you are having some serious compatibility issues. This is caused by your selection of fish. African cichlids are at the top of the list when it comes to being pugnacious, ornery and territorial. Balas, too, can become relatively nippy when the time comes. You have been lucky so far, in that, everyone has gotten along. Count your blessings. It may be time to change the neighborhood. I know you probably didn't want to here that, but.........
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