Two Little Fishies Magnesium Pronto 500g Part # 60051

Two Little Fishies Magnesium Pronto 500g Part # 60051

• Rapidly raises the magnesium ion concentration in aquariums
• Needed for growth of stony corals
• Fast-dissolving blend of pure anhydrous magnesium chloride and magnesium sulfate
• Supports the formation of hard coral skeletal tissue
• Magnesium helps maintain calcium and alkalinity levels