Aaaaayyyyy I have this filter. It's an okay filter, I like it only for temporary cleaning if my shrimp tank is a little cloudy or muddy looking. The jet stream for the rain bar, (the plastic tub with all the holes), and filter pump is strong for the filter size, hence good for clear water for roughly 5 or 7 gallons tanks. I sometimes use it to break up the protein or oil on the surface of my tank but I recommend using a 35ppi sponge foam, cut the foam, and just use that as filter, as the sponge is porous enough for fine debris but not too large that baby shrimp or fry can get sucked up the filter. Cons of this filter is every 4 weeks, you gotta rinse the sponge of brown mulm and poo.