Just bought a 75 gallon from a friend and finally want to have a cichlid tank. Just a couple of questions. First, I want to use sand instead of gravel, how do you go about cleaning? I use a snake now but I know the sand will get sucked right up unlike gravel. Second, I want to get 3 clown loaches, for the most part will cichlids leave them alone? Finally what kind of cichlids do you like best, any suggestions?