Brightwell Liquid Reef 500ml

Brightwell Liquid Reef 500ml supplies calcium, carbonate, strontium, magnesium and potassium for organisms that build calcareous skeletons or shells. Its mineral sources include aragonite, and it contributes to alkalinity as well as calcium.

Shake thoroughly and establish the amount from measured calcium use while tracking alkalinity and magnesium. Brightwell notes that the product may temporarily cloud the water and recommends dosing at night. A combined mineral source can be convenient, but a tank with uneven element consumption may still need separate corrections rather than a larger dose of every component.