Possible pottasium shortage? Pin holes in plants.
This is my second try at a MTS aquarium. It is a 75 gallon with what I think is medium light and pressurized co2. About 40% water changes every 2-3 weeks.
Ferts I have on hand are the liquid pfertz micro and N along with powder/dry K2SO4.
Each time I would have plants after a 2-3 month period showing pin holes especially in hydo kompact, swords and some crypts.
Dosing has been just the micros and N when a water change is done.
This did not help so people have mentioned it was probably K/K2SO4.
My question is how much should I dose and how often.
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Odie's Planted Playland 75gallon Crypt heavy