I've currently got my betta Goblin in the 4gal baby BiOrb tank. I live in a dorm & the rules state no bigger than a 10gal tank. But I didn't have room for a 10 gal anyway. But either way he seems to be loving it! Hes popping the bubbles with his face and blowing more bubbles underneath them! I was hoping to put some plants in the tank (no live) that will fit in the tank. I bought some generic plants & they don't fit in the BiOrb, I was really wondering what kind of plants do they love? I'm hoping to put enough plants in that he has places to hide and just rest, but still swim around. I cant get a bigger tank because I just have no room in the dorm. Would leafy plants do better? & should I try to find something small enough that he can hide in? Like a little cave?