Ways to tone down CK aggression?

  • We are currently upgrading MFK. thanks! -neo
A

aeri

Candiru
MFK Member
Sep 11, 2007
566
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48
Toronto
I've had my ck for close to 1.5 years now. There were no problems with him for the longest time when I still had my 2' arowana. A few months after the aro was gone he started to get more and more aggressive with its tankmates.

Tankmates are a little smaller, he's on pellets, fed until he looks like a ball, and there's decent swimming space, but he's still like this.

I gave him some 'time out' in a quarantine tank for 2 weeks, threw him back in with others and started getting aggressive again. It doesn't seem to be too persistent, it's about 1 bite every 2-3 days on my other fish during the night...so I don't think it has the intent to kill.

Would giving him his own cave help? Adding extra flow to make it seem like there's more space?
 
Not much you can do. Its in their nature...
 
What i did to really tone down the aggression with my clown knifes is blocked out the entire right side of my light 50-50 setup and developed like a driftwood cave over there so my cks can sneak off and hide. Also feed ample pellets like 4 or 5 times a day that keeps aggression down also and no live food. And almost no water movement they really love.
 
hmmm. i'll pick up a clay flowerpot for him to stick his head into and see how that turns out
 
Since the absence of the bigger Aro is there, it took over as the dominate resident in the tank. Unless you can get another larger fish in there, it's how it would've ran the tank if the other larger fish wasn't there.
 
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