240g, 125 sump, refugium will be in sump with my marmokreb who is actually carrying eggs at this moment. she is in a 10g right now. I'm thinking lots of driftwood with a few hardy plants. I'm sure they will get ripped apart, but worth a shot I guess. My question is with the 240, and lots of driftwood for hiding places, there is a large jack Dempsey who can hold his own at my LFS. the tank is still being planned out, and the fahaka is about 6-7 inches right now. Can I put anything in with my fahaka? My friend had the fahaka and is moving so I am adopting him, but he had him with some Africans and a few red terrors. he has been with tankmates for a long time now, and no signs of aggression but I know they can flip a switch and go crazy.