Oh my goodness you guys I AM SO sorry for not getting back to you guys sooner, I have been so swamped college lately I totally forgot I had even posted anything! I feel so flakey!
The algae is blackish-green, is about a centimeter and a half tall and looks like cat hair or bad shag carpeting! It started on my plants and moved to my decorations.
the aquarium: custom built glass and stainless steel hexagon; 100 gal. from point to point at the base it measures about 85 centimeters and is just over a meter tall.
the fish: two adult Golden Gouramis (Trichogastar Trichopterus), three Pearl gouramis (T. Leeri), about eight Tiger barbs, two dojo loaches and a plecostomus (he's almost 30 centimeters).
Substrate and Decor: The substrate is 90% white sand, 5% multi colored river rock and 5% natural aquarium gravel. For decor there is a large piece of mangrove root made from polyresin.
Plants: Three amazon swords, three bronze wendii, two "onion" plants (these are some kind of freshwater grass that actually looks like an onion; bulb at the roots and long grass like leaves which grow to like 2 meters), and a few bunches of Rotala Indica.
I'm lighting this aquarium with three 100 watt compact flourescent bulbs and the filter is a magnum 350 canister.
Ammonia is 0, nitrite is 0, nitrates are around 10. I was unable to test the phosphates but they are probably high because of the fertilizer I'm using for the plants. I would like to make a Co2 injecter involving brewers yeast but have no idea what one looks like or where to becin. the only information on them I was to obtain was pretty much that they exist so any help there would also be great.
I hope this info on my aquarium is sufficient and I once again apologise for the delay in responce.