So I have an 150 gallon pond and it currently has extra, larger fish (I'm going to be moving them out to a larger tank that I have once I can get help setting it up. They aren't especially large but just larger than the rest I have) and there is a great amount of debris at the bottom of the tank that I've been trying to get up but the devices I use aren't strong enough to quickly sweep up the waste. I live in California, so I'm trying to avoid using much water, so if anyone knows of an electrical pump used specifically for bringing up waste, that would be fantastic.
