I recently moved the FM into the BP tank. I put the convicts in the 30 gallon tank. I also took the ship out in the BPs tank and made a couple of caves made out of rocks and stones. I got the FM and the BPs to get along. I just took the BPs out and put them in a other tank for like 5 minuets. While the BPs were in the other tank I put the FM in the 65 gallon tank. Then I rearranged the decor and put the BPs back into there home with the FM.