Planted Tank Guru
Join Date: Jun 2012
Location: Gainesville, FL
Hello Nick. Congratulations on your CO2 setup.
The dosing you listed that I had recommended was for a non CO2 injected tank if I recall correctly. Your dosing would be different. When using the calculator for CO2 injection use the "The Estimative Index" selection. These doses are based on 50% weekly water changes and daily dosing. In reality, you alternate micros and macros every other day. However, you're dosing something every day hence the term daily dosing.
Since you're using KNO3 I would hold off on dosing the potassium (K2SO4). The KNO3 will supply sufficient potassium in most cases. In your case, you have a lightly planted tank so there is no need to add extra potassium. Between the KNO3 and KH2PO4 you will be dosing 5ppm of potassium. Remember, EI dosing is providing excess nutrients. So those doses are above the necessary levels.
Mix each of the nutrients below in 500ml of water. Each dose is 10ml.
KNO3 13 teaspoons (67.123 g)
KH2PO4 2 teaspoons (10.224 g)
Plantex CSM +B 10 teaspoons (42.028 g)
Follow the dosing and water change schedule below.
Mon. KNO3 and KH2PO4
Wed. KNO3 and KH2PO4
Fri. KNO3 and KH2PO4
Sun. 50% water change (no dosing)
The only hitch to the nutrients above would be magnesium and calcium. GH is a measure of Mg and Ca. If you have a high GH you most likely will not need to add GH booster. However, adding enough GH booster to raise your GH 2-3 degrees with every water change isn't going to hurt anything (unless you have sensitive invertebrates). There is also an extra benefit of GH booster in that most contain potassium.