I got a dwarf puffer around last christmas that has lived in a 20 gallon tank. It used to be fairly outgoing, swimming up to the front of the tank and begging for food like a puppy, but lately it's turned extremely shy. Just one glance sends it scurrying to the back of the tank. I'm actually having a hard time feeding it because the other fish (6 neon tetras) snap up any bloodworms I toss in almost immediately. I tried putting in artificial plants to try and make it feel more secure, but honestly it's even harder to find the puffer now. Would keeping it in a 10 gallon tank by itself make it less timid? There're two kuhlis in there but I have a lot of nooks and crannies for them to hide in.