Sponges clogging sponge...

[Inedaan]

For whatever reason sponges really really love growing in the sponges in my TLF 150... It's to the point where after about two weeks the sponge gets so clogged up it severely reduces the flow (With the very scientific measure of seeing how fast the output fills a measuring cup). Does anyone else have this problem? Here's a pic I took today for fun