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  • Brightwell Aquatics Brightwell Reef Code B-P
  • Brightwell Aquatics Brightwell Reef Code B-P

Brightwell Reef Code B-P

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Ionically balanced powered Calcium & Alkalinity for all marine fish & reef aquariums.

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  • The alkalinity-bearing component of a two-part method for dosing calcium and carbonates (the substances largely responsible for increasing alkalinity (”buffering capacity”)) in the same ratio as that found in natural seawater.
  • Unlike single component KH products such as sodium carbonate, Reef Code B is a multi-component automatic buffer that regulates pH and its use makes for a much more stable aquarium.  Eliminates pH and KH instability caused by poor salt mixes and ineffective buffering products. 
  • Also adds multiple major, minor, and trace minerals.  Ionically balanced with respect to natural seawater concentrations of calcium and carbonates when used in equal amounts with Reef Cōde A.
  • Benefits reef-building organisms such as corals, clams, calcareous algae, etc.
  • Simplifies calcium and alkalinity maintenance; economical for particularly large systems.
  • Contains no phosphate, silicate, or organic material.
  • Formulated by a marine scientist.



Basic Instructions and Guidelines: Dissolve 20 grams per 8-fl. oz. of purified water in a clean mixing container and stir to dissolve; dose the resultant solution to the aquarium system as required to maintain the alkalinity within a range of 7 - 12 dKH. Up to 60 g per 8-fl. oz. of purified water may be mixed at once.


Advanced Instructions and Guidelines: Create a stock solution by dissolving 30 grams of REEF CŌDE B-P in 8-fl. oz. of purified freshwater; each ml of the solution will increase the alkalinity in 1 US-gallon (3.785 L) of water by ~1.0 dKH (0.375 meq/L). [Reference: Each g of REEF CŌDE B-P will increase the alkalinity in 1 US-gallon (3.785 L) of water by ~8.3 dKH (3 meq/L).] If the initial alkalinity in the aquarium is below 7 dKH (2.5 meq/L), add stock solution at a maximum rate of 10 ml per 20 US-gallons daily until the desired alkalinity is attained, then dose daily or weekly as needed (see below). Maintain alkalinity within a range of +/-1 dKH. Once desired alkalinity has been acquired, measure the alkalinity at the same time each day over a one- to two-week period to determine the required rate of alkalinity depletion. To determine daily dosing rate: estimate volume of water in entire aquarium system (US-gal.); divide the daily decrease in alkalinity by 2.1 (when reading dKH); multiply this number by volume of water in the system to obtain daily ml of stock solution required to maintain stable alkalinity. The maximum strength of the stock solution should not exceed 58.3 g RCBP per 8-fl. oz. purified water. Dose system as required to maintain desired calcium (using REEF CŌDE A-P) and alkalinity values. Do not mix solutions together; this will cause the active components to precipitate and become ineffective. It May be mixed individually in large containers and dosed with a drip- or automated-dosing system; ensure that solutions are entering the system in different areas to prevent precipitation. If adding manually, allow at least 60 seconds to pass between dosing REEF CŌDE A-P and B-P solutions.


CAUTION: Contains carbonate and bicarbonate salts; harmful if swallowed. If swallowed: give water, get medical attention. May cause eye or skin irritation. If in eyes, flush with water for 15 minutes, get medical attention. If on the skin, wash thoroughly with water. Keep out of reach of children. Not for human consumption.



Inorganic salts of Carbonate, Bicarbonate, Sulfate, Borate, and other important anions with minor and trace minerals.