what kind of algae is this?

[kolosy]

http://www.kolosy.com/stuff/aquarium/IMG_0976.JPG

it's very fine, and comes off like dust in the water when i scrape it. does not turn purple over time, so doesn't sound like coraline.

i've got some hair algae, but seems to be localized for now. otherwise, water params are good.

[Sk8r]

That's generally called film algae. Scrape it off with a razor, and have a fuge or phosban reactor to absorb the phosphate it contains or it will be back. When it is really bad, (high phosphates) it will be back every 4 hours.

Use only ro/di water. (no phosphate)

[kolosy]

arrgh. i need to do something about my fuge. i obviously have excess nutrients in the system, but my chaeto just will *not* grow.

i need to upgrade my lighting or something.

[nick063]

i use a flood lamp bought at home depot and my cheato grows like mad