Hey everyone. I have an 8 to 10" dovii. I was wondering what make good tank mates for them. Right now he is in a 75 gallon with gravel, sand and some big rock's. I know I cant keep him in there forever as the dovii get huge. I have a friend that has built a 5000 gallon plywood aquarium in his basement. that he will go in pretty soon. I was just wondering what could go in with him that he wont kill right off the bat. Any advice would be greatly appriciated. Thank you.