Hey there! I seen where you posted about not knowing what to get, a hamster cage or more fish...Good Idea going with the cage..But I wanna say something, You said you had a Beta fish right? and you say it's in a big tank? Welllll not telling you what to do, but Beta fish aren't made for big tanks...They prefer smaller tanks to feel closed in and such, makes em feel safer. OH and never put another type of fish in the same tank with your Beta, either your Beta will kill it..or the other will kill the Beta...But I do think it's better if you put your Beta in a smaller tank, I've had quite a bit of them and know some things. But like I said....it's all up to you, all I'm saying is he'd be happier in a smaller living quarters. Anyways Have a good day.