I wish they didn't too. Fish that large belong in public aquariums rather then home aquariums :( On a good note we had a molly left at the store who's huge and I got 3 people to not buy mollys for a 10g by bringing it out. seeing a 3 inch and imagining a 3 inch fish are very different.
I moved my paradise fish Castiel into the divided 10g and he's so happy to have more room, he even made a big bubble nest, it goes along all the glass edges and is extra big under the mesh that fell into the tank O.O
