Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
Start with the liquids and fine tune the dosing. Get each separate:
and maybe Iron (if the traces have low iron- watch the plants)
Work toward dosing all the N, P, K on one day and the traces and iron on another day.
Once you have the ratios you can:
a) make a custom blend of dry N + P + K and water in one bottle, and dry traces and iron and water in another. Dose in the way you have worked out with the liquids.
b) Refill the bottles with dry ferts and water, keeping N, P, K separate, and traces and iron separate. Match the original concentrations, then the dosing will be the same. The other people helping may not even know you are refilling the bottles.