Anyone else have a 'peaceful' fish that is really aggressive?

  • We are currently upgrading MFK. thanks! -neo
Tell me about it, probably didnt know that aro scales are like armor and aros bite can do real damage:ROFL:
You ever keep him with smaller non aro/bichirs ? Wondering how a big silver would do with smaller cichlids like my het.
 
I not sure but ive put a 3” NTT datnoid with him, they seem to be fine in the tank, its been 2-3 months now.
Glad to hear. Definitely worth trying then
 
What size tank is it in?
I find that tank size (or lack thereof) is almost always the main factor in aggression.
I have just the opposite opinion as tlindsey (respectfully), I don't see any cichlid as aggressive, but if it is, its in the wrong size tank.
An example I've read tons of posts about how mean festae are, I combined them with many other cichlids in my tanks, and never had a problem.
It is a 55 gallon tank
 
I normally consider 10 gallons of water per inch of cichlid as minimal, but I guess your cichlid figures its not enough.
I've had 10-12" Paratilapia kill each other in a 500 gallon pond.
so what I or anyone else thinks as adequate really isn't relevant, if the fish thinks otherwise.
 
I kept a really aggressive female swordtail once, I had to get rid of it.

Funny that you say that but I had one aggressive female swordtail as well that started chasing and nipping the tails of my corydoras..... It turned out I had an ammonia spike after cleaning the solo filter way too well the weekend prior....After I got my stats on track, the swordtail was no longer aggressive...
 
Funny that you say that but I had one aggressive female swordtail as well that started chasing and nipping the tails of my corydoras..... It turned out I had an ammonia spike after cleaning the solo filter way too well the weekend prior....After I got my stats on track, the swordtail was no longer aggressive...
That was not the problem for me, she killed the male I think, but I know she killed my dwarf honeymoon gourami. And made all of my fish beside my upside down catfish stay in the bottom left corner.
 
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