Mix it up!! thoughts and experience about mixing aggressive species

His old are your fish? I used to have a jag in a 125 with an oscar and a couple cons but when he was sexually mature he turned into a real jerk. I now have two oscars in there. It's a crap shoot with these aggressive species as each individual is different. I grew these fish up together and one day the jag turned on the oscar. My buddy has a big male jag in a 90 with a jack Dempsey and the jag is a big puppy dog. Bottom line is that you will never know until something happens, if it happens.

arowana666 said:

I am thinking about adding a ray


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How big is your tank?

arowana666 said:

1450G 54ft2 floor but it is not the size i am worried about its the tank mates


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Well Size of the tank goes a long way to aggressive species getting along in an artificial environment. Sounds large enough that it all might work within reason, but you never know, and just because some particular fish worked together in someone elses tank, doesn't mean you'll get the same results.

But good luck with what ever you choose.

I doubt the Ray will have a problem. It spends the majority of it's time at or near the bottom. Also his size will intimidate to an extent. The Channa I don't know about, we don't have them here and when we could I wasn't keeping tanks large enough to house them.