Barqs Mom

Thanks for the heads up. Yes, I had them too. They appeared about a week after I set up my 40gal. I'd added a large piece of a waterlogged tree branch I'd picked up along the Columbia River, not too far from where I live. I'd boiled it in a huge stock pot for 6 hours and then put it in my oven at 200°F for 4 days. Anyways these worms started showing up after I'd planted a bunch of live plants, rocks and the tree branch. I got rid of them by adding 2 generous tablespoons of Hydrogen Peroxide to the water. Yep it killed them, but didn't harm the plants. 6 weeks later I added 4 more plants bought locally, and 3 tiger barbs ($0.25) sized ones to the aquarium. Today while feeding them I saw more of these worms on the glass, some in mid-water. So if it's true these worms won't harm my fish, I won't quarantine them while I kill the worms.