My cacs laid eggs again and this time Im going to be ready! I plan on keeping them with the parents for about a week or so after they hatch and then move them to a 36g growout tank. I have to order a heater and a filter... right now there is an UGF but I dont want to keep gravel in the tank so I need a different filter. I was looking into something like this sponge filter but do not know how it works since its so big. I have used small sponge filters before with a little pump but do not know how these work. Also I have brime shrimp eggs so I know what to do with those. Thank you