These little brown/black worms are living in my fish tank "fresh water" and when they grow up they form into these black mini flys and there not "Black flys" or "blood worms" But they stick to the side of my fish tank walls and grow and I can't kill them when they grow up into Mini flys they bite me while I sleep and I'll post a picture of there "larvae or baby" form when there in my fish tank Surface and ground waters stagnation; Trapped water stagnation. It is not uncommon to notice what appear to be tiny black worms in the turtle’s tank. I scrubbed and scrubbed for hours and hours with bleach and the algae and mold wont go. BUt - it seems there were no drainage holes in the half barrels and once I'd pulled out the top layer of slates, both barrels are full of stagnant water. so i have this bucket in my back yard that has had water sitting in it for a while. Sign in. Water is used by everyone, every day. dugbug63. They are most likely insect larva and can be found in stagnant puddles as well. they look like what someone would consider a parasite looking worm. Protozoa, which live as parasites in humans and animals, are also found in drinking water. >>Very good. The worms have been identified as bloodworms, the small larvae of the midge fly (Chironomidae). I don't know how to get rid of the algae. Are they dangerous? Drain flies and their larvae breed and eat in stagnant water, so it is likely that the spongy surface the sponge was sitting on was where these creatures were residing. Drain fly larvae are black and may resemble very small worms. How do you think about the answers? The worms that have been reported to have been found in tap water are midge larvae, flatworms, roundworms (otherwise known as nematodes), and rotifers. In indicator species. they showed up before and i dumped the water out, but they came back. it hasnt moved in nearly 7 years. In some instances, these wormy larvae may be noticed in a toilet tank or in stagnant water pooling in the bottom of a seldom-used shower or sink. What looks like a small, black worm in stagnant water may not be a worm at all. Getting rid of the drain fly larvae involves some thorough sanitation and efforts to eliminate food sources and excess moisture. Anyway i looked in the whole to see if any bugs were living in the water or something. Mosquitoes lay their eggs in stagnant water near ponds, lakes and rivers, or wherever rainwater has collected, such as clogged gutters, old tires and areas with inadequate drainage. 10. They live in standing, stagnant water, and especially seldom used drains. creep realistic gummy worms. Some types of salamanders and newts lay their eggs in water. Worms are the last things you want in your drinking water, but sure enough they exist in microscopic form in lakes and streams. In annelid: Importance. The eggs are typically laid in a large jelly-like clump that may be found resting at the bottom of a pond or attached to aquatic vegetation. Water stagnation for as little as six days can completely change bacterial community composition and increase cell count. These larvae live in still water. Thankfully, both can be filtered out with fine water filtration. These wriggly little worms may look nasty but they generally cause your turtle no harm. I went away and left a bucket in the garden, i forgot about it and then I found it again yesterday, it was filled with rain water and hd gone stagnant, there were some creatures that looked like worms, small and thin, they were red. So i just left it and a few weeks later tiny black worms started growing under there there from 2mm-10mm long. 8 – Drain fly larva have narrow, strap-like plates across the upper surface. In the same vein, if they look too slim and unhealthy, then you should consider feeding them more often. Unlike the jelly mass of eggs that frogs lay, toad eggs will look like black beads strung on long ropes of jelly. You can sign in to vote the answer. Strain the water and store it in the refrigerator. for it to not fall over we had to fill up the base with water. They can come out of your drain or live on your shower surface. 1 decade ago. pretty gross. Residents of Colcord, Okla., were shocked to discover tiny red worms in their drinking water this week. Their larvae look a bit like tiny, skinny worms.