I've got one in Brooke's 5 gal tank and she really loves it. She rests on top of it and also swims underneath, where I have a tall silk plant leaf where she 'hides'. During feeding, I actually feed right over the leaf. That way, she has some extra time to eat before anything falls to the bottom of the tank. There is a wire on the bottom that can rust. I clean it when I clean the tank and it's not been a problem.
Mizu has one and he loves it! It took him awhile to figure out how to use it but he is always laying on it I actually bought another one but it didn't ever stick to the tank for some reason.But yeah you have to be carful and watch for rust I usually scrub mine every water change and it's fine.
Dobby - HM
Absolem - DeT
Fez - Metallic OHM
Tomato - HM
Thor - HMPK King
Sorrority tank - 1 Det - 3 CT's
Goldfish Tank - 1 Orange Oranda - 1 Calico Fantail - 1 Clown Pleco - 1 Dojo Loach
i have the hammock and the floating log. at first my betta used the hammock for the first hour until he found the log! he's always around the log like it's his security blanket! it even has a opening on top of the log and i feed him through there every morning.
someone here said they had a blind betta, USE THE LOG! there's an opening on top like i said :)