At the zoo in Ohio last week they had a 3 ft tank with live rock and I assume one huge anomone covering almost the whole tank. Anyway this tank has probably 7-10 clownfish in it and my wife was commenting how we should do that with my 4 ft 120 gallon instead of a snake. (She really does not want a snake) can this be done? I know they did it but just because its done once doesn't make it right. And could it really be just one anomone or multiple?