Can anyone tell me what these small worms are on my live rock and if they are detrimental to my aquarium? They have been in there for about 6 months and my fish are all incredibly healthy so they don't seem to be causing a problem. Any help would be greatly appreciated.
mine too. Tanks been up and running for years and they’ve never caused a problem. Sometimes you will see what looks like spiderwebs. That is from them. They are trying to catch food with them.