[AquaticLife] Re; Parasites
A parasite would be found living on a fish or other organism. What you are describing sounds like they are not parasites, but some sort of worm. From your description, I cannot say what they might be, as I am not familiar with one that will regularly come out of the water as you describe. Do you see them in the tank? If so, where do they seem to be living?
I would suspect that they are living in your tank, feeding on excess food that may be available Normally, most fish would eat most worm like critters, but there are exceptions. If they are not eating them, they may well be satisfied with your feeding, or they may be found as distasteful to the fish.
Since they seem to be regularly coming out of the water, you could use a tissue or paper towel to wipe them off the glass to remove them from the tank, and dispose of them.
\Steve//
Category: Philippines Internet Koi Society
