I was feeding my cichlids the other night when I noticed this little silver thing in the tank. I didn't think it was much until I looked at it closer and realized that it was some sort of creature that was wiggling around in the tank. I took a baby brine shrimp net and snagged it up and looked at it. From outside the tank, the "head" of it looked dark, almost black, and the "tail" looked like it could be almost transparent. I gave my tank another quick look and didn't notice anything so I just finished feeding and let the lights automatically go off and I went to bed. I decided tonight to have another much closer and in depth look and I noticed that there were more, not alot, but after about 10 minutes of just looking I caught maybe a dozen at the max. Probably around 8-9. I have tried to find more about this but I haven't had to much luck. I was concerned because I saw something about the fish scratching against the rocks and decor but that doesn't take place in my tank except for the biggest cichlid. Occaisionally he will make a sharp run against the substrate and that is it, too frequently. The picture I attached was taken with my cell phone. I put the "worm" next to a nickel to show the size, if you can't see it, that just goes to show how small it is. Any help or info would be much appreciated.