soil additive calculator

> UPDATED SOIL ADDITIVE FOR A 100 GALLON TANK: (edited)
> [10:01 PM]
> 4 tbsp Ironite or iron oxide 
> 1 tbsp garden lime
> 2 tbsp blood meal
> 3 tbsp bone meal 
> 1 tbsp Epsom salt 
> 1 tbsp marine calcium
> 4 tbsp diatomaceous earth
> 1 tbsp sodium bicarbonate 
> 2 tbsp liquid iron (optional)
> 1 cup biochar or charcoal 
> 1 cup worm castings

Might be able to link to FF store for the proper size.