Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
Break apart the blob, but it is OK if it is small crystals when you dose.
Here is how I do it:
Figure out how much of each I want to dose over a couple of weeks. (6 doses, based on Estimative Index method)
Put that much into 2 bottles.
KNO3, KH2PO4 and K2SO4 are in one bottle, labeled Macros.
CSM+B or other trace minerals are in another bottle. Labeled Traces.
Add enough water to dissolve the materials, and add it in some amount that makes dosing easy.
For example, to dose at the rate of 1ml of fertilizer per 3 gallons of tank size you would add up all the gallons of tanks, then divide by 3 to get the daily dose, then multiply by how many days worth of dosing you put in there. That is how many ml of water to add to the bottle.