I want one so bad but dont have tankspace. IME, they have sent most other cichlids running away with their tail inbetween their legs. My uncle had one in his 180 that kiled all his other fish, so he brought it to our LFS who put it in their 300g South american River tank (which looks awesome). I went back a week later for feeders, and the store owner was going to pay me to take it back, It had killed a red devil, trimac, and a couple jags which were bigger than it. WHen anybody asks me what the most agressive fish to keep alone in a 90 is, I say fene hands down 8O