This ultra pure pharmaceutical grade magnesium sulfate dissolves crystal clear, and almost immediately in water. Perfect for use with calcium chloride and magnesium chloride for DIY 2-part Calcium/Magnesium/Alkalinity supplementation in marine/reef aquarium and aquaculture facilities.
Sign up for exclusive updates and special offers!
Buckeye typcially ships the same day, or less commonly, the day after an order is placed. The majority of our shipments are sent UPS Ground or FedEx Ground. Estimated delivery times for these services are similar, and are shown below. See our policies page for additional shipping information.
Read More About Shipping When should I replace my filters?
Will Buckeye filters fit properly in my water filtration system?
Do I need to do anything special when I install new cartridges in my RO or RO/DI system?