ASF Reef Shot – Magnesium

Essential Magnesium Support for Stable Reef Chemistry

ASF Reef Shot Magnesium is a ready-to-use, single-dose magnesium supplement designed to restore and maintain optimal magnesium levels in reef aquariums.
Magnesium plays a critical stabilizing role in reef chemistry, helping maintain calcium and alkalinity balance while preventing unwanted precipitation.

A magnesium level of 1250–1350 ppm is essential for long-term reef stability and consistent coral growth.

 Why You’ll Love It

• Fast and controlled magnesium supplementation

• Helps stabilize calcium & alkalinity levels

• Prevents calcium precipitation

• Single-dose vial (20 ml) – no measuring, no dosing errors

• Ideal for SPS, LPS, mixed reefs, and coralline algae growth

• Easy integration into any reef maintenance routine

Directions for Use

• Shake well before use

• Dose 1 vial (20 ml) per 200 liters / 50 gallons

• Add every other day, or as needed based on test results

• Pour gently into a high-flow area of the aquarium

• Wait at least 5 minutes before adding any other product

• Do not mix with other products prior to dosing

👉 A weekly 10–20% water change using a high-quality reef salt (such as Reef Evolution Salt) is strongly recommended to maintain optimal water quality.

⚠️ Important Safety Information

• Avoid direct contact with marine organisms

• High localized concentrations may be harmful

• Do not overdose

• Keep out of reach of children

• For marine aquariums only

Product Specifications

• Brand: ASF Aquarium Systems

• Product Name: Reef Shot – Magnesium

• Type: Magnesium supplement

• Format: Single-dose vial

• Volume: 20 ml

• Target Magnesium Level: 1250–1350 ppm

• Aquarium Type: Reef / Marine only

Francois Neo – AquariumPartner Insight

If calcium and alkalinity are hard to keep stable, magnesium is often the missing link. Reef Shot Magnesium is ideal for quick corrections and maintaining long-term balance without stressing the reef.