My cat, about 2 yrs old, likes to knock the tanks over. She's accomplished it twice and thankfully both times I got home quick enough to rescue the fish. I've since upgraded the tanks (3 gallon critter keeper and 1 gallon critter keeper) as opposed to the teeny 3/4 gallon tanks. She can still move the 1 gallon around and also likes to sit on top of the tanks. Because of this I started keeping the tanks in the kitchen and closing the door so the cat couldn't be in there when I wasn't home. Now that it's 90 some degrees out, I had to move the tanks so the cat could get into the basement and escape the heat. The tanks are in my 6yr olds room where I can shut the door. I miss them in the kitchen. It was easy to do water change w/ them right there on the counter. I also could interact w/ them and look at them at night while I watched tv. So, any tips on how to keep the cat away from the tanks? I'm assuming if they were both 3 gallon she wouldn't be able to move them, but the only way to test the theory is to actually let her at them and risk the tanks being dumped off the counter, which isn't really an option. Anyone else had a curious cat?