Also, I am wondering about this, because I am not sure, would one of these things be compatible with corner filters, or is thing also a filtration system? I have never seen one of these before. I freeze water bottles to keep my tank regulated, but I can't keep it regulated if I go out, or if I am on a trip, which luckily this time around I didn't have to worry about because My Axies were in the fridge because my tank isn't finished cycling yet. I am also moving hopefully soon, so maybe cycling my tank will be pointless, but I don't plan to move until there is a down stairs apartment availible in the apartment complex I am in. our apartment just will not get cool, even with AC! we turn the AC on, it has to run for at the least, one hour before it even starts to cool down! It's terrible, sometimes it's 80 degrees in our appartment alone. It was 106 degrees outside yesterday, today I don't know what the temp is, and I just can't stand it. I am really worried because I had no idea that Sacramento California would ever get that hot. I lived in Montana my whole life until I got married last August, and the worst temp I think I ever felt was somewhere maybe the worst, 102 degrees... I could be mistaken. It usually doesn't get hotter where I was from more than 100 degrees or so, and because we had a one story house, it was easy to keep the house cool. My husband and I live upstairs in our apartment, so now that I am really feeling the heat, I think my axies will too, even with frozen water bottles. I am also going to get some lovely plants for my tank, live plants that is. Some duck weed, and some other stuff, not sure what yet, I'm having a lot of fun deciding