Seachem Reef Builder™ Aquarium Controller Modules and Accessories Made from food-grade resin

Made from food-grade resin

To balance these natural elements

More convenient than two separate bags of media

Pre-assembled water level mechanism with:

Previously branded Aqua-Pro

Seachem Reef Builder™ Aquarium Controller Modules and Accessories Made from food-grade resinKey Features Net Weight: 300 g Raises carbonate alkalinity (KH) with minimal impact on pH A blend of carbonate sources that will not lower pH as competing bicarbonate only products can Will not deplete calcium, magnesium, or strontium Description Reef Builder raises carbonate alkalinity without immediately impacting on pH. With long term use there will be a tendency to stabilize at pH 8. 3. Used as directed, Reef Builder will not deplete calcium,