Worm-like object in tank?
I was looking into my tank at all the wonderful baby snails and the fish, until I spotted a long slender object. It was brownish/grayish, and it crawled much like a worm or a caterpillar. I was a bit scared that it would do something to my fish so I reached my hand in and mashed it really hard with my finger against the glass until it floated away into the water flow.
Should I be worried about this?