I now have 8 male Betta's. Zen, my E.E. practically lives on his, one of my veil tail's Si, and one of my Half Moons' Eng, are on theirs often. I see my other Half Moon, Chang on his once in a while. Buddha, Am and Thai never go on theirs and I just bought my brand new white Veil tail Sushi his, so I don't know about him. It's funny how different each of them are. And talking about being hyper, I got Sushi one week ago to day, and I don't think I've seen him stop, during the day, yet.