Seachem Reef Builder
- Seachem
257.86
- Includes 15% VAT
- Free delivery on orders over 200
A note from Olfa
Behind every calm tank is someone who reads the manual. Thank you for your service.
Reef Builder raises carbonate alkalinity (KH) 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, magnesium, or strontium which usually tend to precipitate with increasing alkalinity.
Reef Builder and Reef Buffer may be used together. Use Reef Builder to raise carbonate alkalinity without affecting pH. Use Reef Buffer to raise carbonate alkalinity and pH.
Reef alkalinity should be maintained at 3–5 meq/L (8–14 dKH). Alkalinity should not be allowed to fall below 2 meq/L.
Product Features
Raises carbonate alkalinity (KH) with minimal impact on pH A blend of carbonate sources that will not lower pH as competing for bicarbonate-only products can Will not deplete calcium, magnesium, or strontium

