Have you ever crawled under your tank and looked up at the gravel? What kind of crawlies lurk? I'll go first! I don't have the best camera or skills, but you can see a tubifex/detritus worm toward the top of the first photo.
This one evidences some whiteworms and lost plant matter.
Let's not be bashful, now. We all have some filth!
This one evidences some whiteworms and lost plant matter.
Let's not be bashful, now. We all have some filth!

