Wait till the convicts get a little bigger and they can makes all large fish stay in a corner....You needs to remove the convicts if you want to breeding JD. Otherwise you can have World War III in the 55gal.
He is right. If you wanna do a con jd hybrid find a large male con smaller or similar sized female jd and let them grow together they will eventually breed. But once again can only be them in the 55
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