I pretty much do gravel cleaning every time I change the water, which is every day I guess. I don't do it overly thoroughly, but I figured I may as well vacuum while I'm doing my water changes. The stuff that clogged my filter is this almost thread-like, wet toilet-paper looking stuff that started to grow heavily on this ornament that I had (now gone). It spread to the walls of the tank but I scraped it off with the algae brush, but bits still show-up now and then.
What the heck is this stuff? Never really found out. It seemed to be especially prone to this fake-rock ornament. It floats around after water changes and I think it is what clogged my filter. I
might consider buying a better filter anyway, if anybody has good reasons why I should chnage from my current Elite Hush 10 for my ten gallon tank.
I don't know how I would do this without the expertise on this site, thanks for your help