Is this true?
Quote:
Originally Posted by Hoppy  Green dust algae is a soft film algae that usually grows on the glass, but can easily be wiped off. Its spores are "zoospores" early in its life cycle, which are free swimming spores. When you wipe the glass the spores swim around and resettle on the glass to resume their life.
Green spot algae is a hard algae that grows on the glass and any other non actively growing surface. It forms small circular spots. It scrapes off, but only with effort. |
I've been thinking I had GDA but I would never say it "wipes off". I have to scrub it. It looks like a fine dusting all over my glass. When I rub my fingers over it, I feel tiny bumps.
Strange that it could be GSA because I tested my phosphates about two weeks ago and it was 2 ppm.
I hope it is GSA, can anyone confirm?