Botanicare ClearexCorrect the most common cause of crop failure the buildup of nutrient salt deposits in soils or soil less grow media. High salt concentrations in media can cause the shrinkage and death of plant cells due to the excess draw of water through cell walls, and eventually lead to the irreversible wilting of plant leaves and stems. Periodic flush's with Clearex will remove excess nutrient salts and safely leach them from your crops media. Botanicare Feed