Thanks for such a detailed response!
I have just the one 36” bulb in my 55gal(36”,18”,21”)
I’ll play around with the calculator you mentioned to find a dosing routine that will work for me.
So the goal is 4:1 Ca:Mg, ~30ppm NO3, ~10ppm K, ~1ppm PO4, and >4ppm mg?
The only concern I have left...