Can I increase EI with no harm?


Guru Class Expert
Sep 6, 2008
between Sac and Reno
I have been using Non CO2 EI dosing for almost 3wks. I just reduced my light from 10hrs to 8hrs. My fast growing plants are pale in color and the large Anubias is getting GSA along with the glass. Moss and Fissidens seem fine. I melted the Subwassertang. Would there be to many nutrients in the tank if I increased to Regular EI dosing? Would this help?

Non CO2 EI

1/4 teaspoon of KNO3 3-4x a week (every other day)
1/16th teaspoon of KH2PO4 3-4x a week (every other day)
Traces added on off days as the macro nutrients, so 3x a week,
Excel daily

Regular EI

40-60 Gallon Aquariums
+/- 1/2 tsp KN03 3x a week
+/- 1/8 tsp KH2P04 3x a week
+/- 1/8 (10ml) Trace Elements 3x a week
50% weekly water change


Guru Class Expert
Jun 8, 2007
I would increase what you're doing by 25 or 50% for a couple of weeks and see what happens. The idea is to have too many nutrients at all times. :) If you're doing Excel you may need more anyway. I don't think it will hurt.