Thanks Doug. That very well may be what happened then since I went from a 36" two lamp T5HO to a 48" six lamp T5HO.
I went through the article that Larry gave me and I have a couple of additional questions. After rock and sand, I calculate a water volume of about 30 gallons. Per the calculator it says I need to add 7.3 oz if I am using the Epson Salt method. I am assuming that means fluid ounces after the solution is mixed. Since I don't want to dose more than 100 ppm
per day, I would split that into two doses of 3.6 fl oz correct? Also, since the article says to mix 8 cups of epson salt to 1 gallon of RO
it wold give me tons more than I need. Can I do the math and go with one cup in 16 fl oz of RO
and accomplish the same thing?