This stuff does the trick. It takes the chlorine out so the soil can grow microbes. If you want to have healthier skin, i recommend this.
Description says 1 teaspoon per 10 gallon but bottle says 1 ml per twenty.
Easy way to add tan is to water. It does both as well as lowering the ph so beware. My snail is a little speed * now.
Mostly unreliable reviews. Do more research before proceeding
Very reliable reviews you can trust