What are filamentous algaes? And Algaefix Marine?

[rsteagall]

What are the most common filamentous algae? And which are the most common that are NOT filamentous algae?

I'm just trying to make sure what I'd be tackling if I tried the Aquarium Pharmaceuticals Algaefix Marine product.

I'm on the tail end of a PO4 problem and it seems like the hair algae and maybe a little bryopsys is still hanging on for dear life. I still don't have PO4 to 0ppm yet, but as its going down... it seems like the hair algae is having a growth bloom! After I can test my PO4 to 0ppm or close to it, I was thinking about trying this product out.

Anyway... a list of common filamentous and non-filamentous algae would be nice as well as anyone's experience with API Algaefix Marine.

http://aquariumpharm.com/en_us/index.asp
http://www.marsfishcare.com/

That is their site(s).

I called them and they said their relaunching their site in Feb. This was their explanation why this particular product isn't listed.

Thoughts?

Thanks,
Ryan