Seachem Reef Calcium 250mL

A highly concentrated liquid calcium supplement designed to safely raise and maintain calcium levels in reef aquariums.

Seachem Reef Calcium is a liquid calcium supplement formulated using polygluconate-complexed calcium, allowing corals and reef organisms to easily utilise the calcium for skeletal growth. Unlike some calcium supplements, this form helps maintain calcium levels without significantly impacting alkalinity, making it ideal for maintaining balanced reef chemistry.

The liquid formula is easy to dose and suitable for regular supplementation in reef aquariums containing stony corals, soft corals, coralline algae, and other calcium-consuming invertebrates. Regular dosing helps support healthy coral growth, strong skeletal development, and vibrant reef systems.

Features & Benefits

• Liquid calcium supplement for reef aquariums

• Contains polygluconate-complexed calcium for efficient uptake

• Supports coral skeletal growth and coralline algae development

• Does not significantly affect alkalinity

• Easy-to-dose liquid formula

• Suitable for marine and reef aquariums