Here is the deal.. It is a 37 gallon tank. 130 watts of pc light on timer for 10 hours per day. 90% flourite substrate (10% quartz). Fertilize with excel and potassium weekly. Co2 recently added (to stop the water from going green and help plants outcompete beard algae growing on them and wood; 2 bubbles per second. Water is ro/di and 40% changed monthly. Feeding is once a day and minimal.
Since adding the co2 (5lb bottle with Blueline regulator) and new plants, the water has not gone back to green, but the algae has spread onto the new plants. Phosphate tests show minimal readings. Nitrite is zero, Nitrate is reading at lowest level on test.
I posted this question on a non-planted tank forum and it was suggested that I add nitrate to help the plants outcompete algae. Any thoughts? If I do this, will Seachem's Nitrogen work for this? -Andrew