07-26-2012, 10:15 AM
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Originally Posted by russp
It's a 29 gallon tank with 4 yellow labs. I haven't noticed any aggression between the fish and they have plenty of hiding places. Whatever happened occurred while I was on vacation (Quebec City). I got back to some pretty cloudy water in this one tank, I must have put too much food in each glass I left my house sitter to feed the fish with in this tank, my smaller one was fine. I did a 30% change right away and have done 2.5 gallon changes each day since. After another 10 gallon tomorrow or Saturday, that will be a full tank change so hopefully the water will be back to clear and healthy.
I do notice now he is staying close to the top of the tank most of the time which is unusual. He is going to other levels to eat.
Sounds like this fish is low man on the totem pole at the moment.
Cichlid's are often fine together until one or more reach sexual maturity and then everything changes.
Doesn't have to be a female present for the fish to begin dominating other fish, but add a female to the mix that is not ready to spawn, and this would or could, result in the interested male getting aggressive with the female or other males.
Not much room in 29 gallons for territorial disputes and or room for spawning that may take place with more than a couple of these fish.