Is this Alga?
If yes, I take it that I am in trouble.
I used two or three drops of PT nuke, I built the loop something like 3 months ago.
I REALLY would like to find a way of getting rid of this without taking it all appart.
As soon as I noticed, I added 5 drops of nuke.
I also accelerated the pump. (it was very low).
I tried poking it with a paperclip, it comes out, I took out the right side in a single spaghetti-shaped thing.