I need to up my nitrate levels in my 30-c apparently because I am getting some hair/thread algae. I do not really have any major producers of nitrate in this tank since the only inhabitants are about 12 cherry shrimp and an oto. I have only been dosing Flourish Comprehensive, Flourish Iron, and API Leaf Zone (K2O). I hope that some nitrogen will help remedy the problem. Sellers, I have only a 7.5 gal tank and have never used dry ferts, so if you could also please give me instructions for use, that would be great. Also, I am a broke college student, so I can only afford a small quantity.