Review on AquaClear 20 Foam Filter by Kristy Powers

I had to replace this sponge a month ago because it gets so dirty. I wash it every week because it gets dirty quickly and I only have 2 fantail goldfish and I feed them properly because there is very little or no food left in the gravel or filter to go in. However this filter is still better than the previous two I had, before that I had a Tetra filter and an Aquatek filter and they both broke after a few months, this one survived and does the job.