Just wondering who here uses water bottles and who uses bowls? I had a bowl in mine for quite awhile. It's up on the second floor and stays clean because no litter can get in it and it's too small for the rats to sit in. But last week I bought a water bottle and thought that would be good cause it would save a bit of space, etc. But I've noticed that they seemed to be struggling to drink the water from it. So I put their bowl back in to see what they would do and BOTH of them ran to it, and drank for about 1min. So that had me worried that they weren't really getting any water from the bottle. Should I just forget the bottle and keep the bowl? Maybe it's just a bad brand of water bottle :?