Most fertilizer salts dissolve best in hot water because they absorb heat from their surroundings - what's known as an endothermic reaction.

Fertilizer Solubility

Fertilizers

Types

1-Part Formula
Complete
2-Part Formula
?
3-Part Formula
?

Formulas

General Hydroponics MaxiGro Formula 1-Part Formula is complete
TODO
Masterblend 8-15-36 Lettuce Formula 3-Part Formula requires Calcium Nitrate and Epsom Salt
TODO