So I've been EI dosing for about a month, but my plants are not doing as well as they should. Yes, there's an improvement, but not good enough, so that it allows algae to take hold.
There's a deficiency somewhere. Can I get some advice on what I'm doing or areas to adjust.
17 gallons, medium density tank. Please see pic for the density.
3 months old, ADA Amazonia soil.
CO2 injection and T5 lights about 7 hours a day.
I'm following EI dosage for < 20 gallons.
10- 20 Gallon Aquariums
+/- 1/8 tsp KN03 (N) 3x a week
+/- 1/32 tsp KH2P04 (P) 3x a week
+/- 1/32 tsp (2ml) Trace Elements 3x a week
50% weekly water change
For trace, I'm dosing :-
Seachem Flourish 3x a week
PH 6.4 to 7.0 (due to CO2 injection
Nitrate 10 - 30 ppm
GH - 3
KH - 0
TDS - 75
When I dosed KNO3, my Nitrate shot up to 40ppm. So I stopped dosing KNO3 after a week, or my shrimps might not be able to take it. All throughout, even without dosing, my Nitrate level was around 20-30 ppm. The plants never really consumed the Nitrate, and since I already have Nitrate, do I still need to dose KNO3?
The result is only average (so-so) across the board, slow growth, algae invading, but the stem plant is not doing well at all.
There's a deficiency causing the stem plant to grow slowly and its leaf to turn brown. Please see the second pic. You can see the BBA and Green Hair algae in the background.
Need help how should I dose ferts without harming the shrimps?