A mix of essential macro and micronutrients.

Use to provide Calcium and Magnesium.

Use to boost the general hardness (GH) of soft water or RO (reverse osmosis) water.

1 lb

The Ultimate GH Booster Contains:

Potassium Sulfate (K2SO4)

Calcium Sulfate (CaSO4)

Magnesium Sulfate (MgSO4)

Select a reclosable bag or our new GLA Fert Jars for easy storage and dosing.

Research before your fertilize. For Fertilization methods and resources, please review our journal article: Understanding Aquarium Fertilizer & Planted Tank Fertilization Methods and Calculators.