Review on 🐠 Xiaoyztan Aquarium Sponge Pre-Filter by April Smith

These pre-filters are coarser than some I've gotten before from other brands and allow for better water flow. I use them on my fancy goldfish and they basically keep plant parts out of the filter. I have two sizes of fine foam in my cooktop to clean the water. I didn't want them clogging the air intake with plants/faeces. I put a few stitches at the bottom of each one to close the end. I use them in combination with Marineland HOB filters, remove the screen and slide it over the pipe. Very easy to wash and reuse.