I decided to give my outdoor biological filter a clean today (every 2 weeks). as soon as I opened it up I noticed the media was full of tiny red worms. Red worms all over the place. On the sponge media, and the biological media. It was also all covered up by some red powdery slightly gunky stuff. I cleaned the sponges but left the biological media be since this might be beneficial growth? I really don't know, but it was quite a site. I tried to clean the sponges as good as I could but I couldn't get rid of all the worms, they were pretty stuck in there. So, my question is, is this good? Is this part of the biological part of the filtration cycle? or is this just a plague. I'm guessing good since it seems worms eat waste (turtle poop) and propagate good bacteria. I have some pics, but I haven't been able to upload them 4 some odd reason =/. I will post them as soon as I can. Thanks ^^
EDIT: Finally got it to work, here are the pics.
Look closely and you can see the worms O.O
