Excellent point there- I added sponge prefilters to the power filters for the same purpose. Good sized sponge filters would also have been ideal, especially if the goal is to breed them. I don't think that's your hope, right? You didn't have the resources for rearing them.I used air operated sponge filters in all my breeding and rearing tanks, including cichlid tanks so I didn't suck up any babies with a power filter.