Brightwell Aquatics Reef Code B Alkalinity Supplement, Part B, 500 mL

Brightwell Reef Code B is the carbonate part of a two-part method for dosing calcium and alkalinity. Used in equal amounts with Reef Code A, it matches the balance found in natural seawater and supports corals, clams and calcareous algae.

• 500 mL (17 oz) bottle
• Alkalinity half of the Reef Code A and B system
• Balanced to natural seawater when used with Reef Code A
• Supports corals, clams and calcareous algae
• Contains no phosphate, silicate or organic material

Follow the label directions and dosage for your tank size.