Seachem Reef Calcium - 500ml Angelfish We recommend Tridacna clams only

We recommend Tridacna clams only for experienced aquarists with well established aquariums

Install the safety screw and replacement air filter in their original positions

Recommended aquarium size: 40-200 L or 10-55 US gallons

Improved rotor

Seachem Reef Calcium - 500ml Angelfish We recommend Tridacna clams onlySeachem Reef Calcium 500ml Seachem Reef Calcium 500ml is a concentrated liquid organic calcium supplement for reef aquariums, using bioavailable polygluconate complexed calcium to help maintain calcium and support coral growth. Seachem Reef Calcium for Coral Growth Support Reef Calcium is intended to maintain calcium in reef aquariums without altering pH. Its polygluconate complex provides a bioavailable calcium source and can be used alongside an