Hey guys, one of my tank is more than a year old now and i can tell that the substrate nutrients are gone which mean that i have no backup if i mess with the water column dosing, i was thinking about osmocote but my soil is 1.5 - 2 inches deep, which mean that ammonia will sooner or later be in the water with osmocote, how to solve that ? thx
i managed to clean my roof, now that autumn is here and lot of rain, tds is now 15 ppm which is near perfect to go back to lean dosing i think.
I actually don't really know if i can call my ferts routine lean because there is so much recipe difference that i'm lost here is what i dose :
NO3 = 3-5 ppm
PO4 = 0.5 ppm
K = 3.65 ppm ( due to K in the KNO3 powder + colombo flora grow)
Mg = 11 ppm - 2.5 dGH
Ca = 4 ppm
Iron = 0.06 weekly DTPA