Oh Yeah. This will probably be helpful. I have high light. 216 watts of light in a fifty gallon tank. In addition to Flourish Excel, I also am going to start dosing Flourish, Flourish Trace, Flourish Iron, Flourish Potassium, and Flourish Phosporous according to the dosing schedule on Seachems dosing schedule except for Flourish which I will dose with every water change.