Hello. My husband purchased one of these Frog o spheres for our daughter recently (FrogOSphere: Frog O Sphere Ecosystem with 2 Aquatic Frogs at Brookstone). I did a little research and have found that this enclosure is way too small for them and is in general not very healthy. However, it's a little late because we already have the frogs. So I'm looking for some advice on a better way to house and care for these creatures. We don't have a lot of space, so I'd like to know, what is the smallest possible size tank that's still healthy for the frogs? How should I be setting it up? I understand that these african dwarf frogs like to hide so I'll need something for them to take shelter in. Is there anything else I should know about these? I am totally new to this, so my knowledge is extremely limited. I feel bad that we purchased this product now that I know it's promoting poor care of these creatures, but I'd like to do right by the little guys we already have. Thank you!