[new2plnts]

I recently ordered some of this and was wondering how much to dose on my tank. I am using it to increase hardness of water since snails are showing signs of not enough in the water for their shells. Tank is a 75gal

 

[orlando]

Here you go
http://www.aquaticplantcentral.com/forumapc/fertilator.php

 

[Edward]

Snail's shell is made by food, not by water calcium content. But if you want to make your plants happy get 20 to 30 ppm of Ca by CaSO4. Good choice.