I have a 2.5G tank I'm trying to use to breed snails and am having trouble finding a filter that will work. The only small filters I've been able to find are all bubble driven, which is much too noisy. So I got a whisper 10i, the smallest internal power filter I could find, but it has way too much water flow. I need to find either a silent air pump to drive a small bubble filter or a smaller power filter.