Aqua Medic Aqua + GH

Aqua Medic Aqua + GH is a water remineralizer for freshwater aquariums used to increase general hardness (GH) in soft or RO (reverse osmosis) water.

Key specs

• Type: GH (general hardness) mineral additive
• Form: Powder with measuring spoon / dosing scoop
• Packaging: typically 250 g container or bag
• Use: Freshwater aquariums only
• Main minerals: Calcium + magnesium salts (balanced ratio)
• Purpose: Raises total hardness (GH) in controlled steps

What it does

• Increases general hardness (GH) in aquarium water
• Rebuilds minerals removed by RO/DI water filtration
• Helps create stable conditions for fish, shrimp, and plants
• Works together with Aqua + KH to balance water chemistry
• Improves calcium and magnesium availability for aquatic life

How it is used + dosage

• Dissolve the powder in a separate container of RO or soft water before adding to the aquarium
• Do not add powder directly into the tank

Typical dosing guideline (general use):

• About 3 g per 100 liters raises GH by approximately +1 °dGH (may vary slightly depending on water chemistry)
• Adjust slowly:
• Raise GH in steps of 1–2 °dGH per water change
• Re-test before further dosing

Best practice:

• Always use a GH test kit to confirm final values
• Add during water changes, not all at once into the tank

Important notes

• Designed only for freshwater aquariums (not saltwater)
• Must be fully dissolved before use
• Overdosing can cause excessively hard water, stressing fish/shrimp
• Works best with RO/DI water systems or very soft tap water
• Always measure GH before and after dosing

Who it’s for

• Shrimp keepers (especially Neocaridina and Caridina setups)
• Planted aquariums needing stable mineral balance
• RO water users needing controlled remineralization

 Not ideal for

• Saltwater aquariums
• Beginners who don’t test water parameters
• Tanks already using hard tap water