Nitrate Spike

[clownfish]

My tank's was done cycling about 3 weeks ago. Everything was fine then. I did a water change last week to get rid of some cloudiness due to dust. Yesterday I checked the water parameters and there seems to be a small Nitrate spike (2.5), everything else is in order. Nitrite 0, etc. I have noticed small spots on the glass of this green hair like algae. It looks like long tiny grass. Could this be the culprit and what can I do to lower the Nitrate?

Any help appreciated. Thanks.

[lunatik_69]

Hey buddy, have you checked your po4(phosphate)? All types of algae feed of nitrates and phosphates. I also have the long haired algae but its only in my over flow corner, which gets direct/indirect sunlight. My po4 is always at zero and my no3 is only at 5ppm and lower. Test for po4 and make sure your tank doesnt get any type of sun light. Hope this helps, Luna