I have the same thing now.. any news ??how are your fishes? Did they eat them ?
Hello! Sorry didn't see this tell now! Don't worry i believe it is harmless. I do not think the parasite i had in my tank had anything to do with these guys. I have since sold those two yellow cichlids that use to be sick. I then put my betta in the tank for a few days.. i just yesterday, put guppies into the tank and basically all of them are gone. To help get rid of them i would scrub the walls down and then do my water change. I believe it was from not doing enough water changes or poor filter. I don't change my 10g as much as i do both my 29g and 55 g. Its more annoying to see and know there guys are in the tank and not being able to really do anything. The only fish that would eat them was the guppies... other then that id say keep doing water changes!!