Red Sea Reef Foundation B (Alkalinity) 1kg Powder
Carbonate & buffer complex for balanced formation of coral skeleton.
Calcium, magnesium, strontium and carbonate are the basic foundation elements of coral skeletons. All of these elements need to be available in balanced proportions for coral health and growth. Reef Foundation B is a complex of carbonate and other buffers present in seawater that maintain proper alkalinity and pH, and is part of Red Sea’s complete Reef Care Program.
For best results, dose according to a measured uptake of alkalinity and in conjunction with Reef Foundation A and C.
1kg resealable tub.
| Component | Quantity |
|---|---|
| Calcium | Present |
| Magnesium | Present |
| Strontium | Present |
| Carbonate | Present |
FAQ
What is the role of Reef Foundation B in a coral reef system?
Reef Foundation B provides a carbonate and buffer complex that helps maintain proper alkalinity and pH levels, supporting balanced coral skeleton formation.
How should Reef Foundation B be used with other Reef Foundation products?
It should be dosed according to measured alkalinity uptake and used in conjunction with Reef Foundation A and C for optimal results.
Is this product suitable for all types of reef tanks?
Yes, it is part of Red Sea’s complete Reef Care Program and designed for use in reef aquariums requiring balanced alkalinity and pH.

Evan Martin –
Used Reef Foundation B with A and C in my 100-gallon reef tank. Alkalinity levels stabilized quickly and my corals showed better growth over the last two months. Easy to measure and mix into the water.
Virginia Smith –
Good product, maintains alkalinity well. I mix it with Foundation A and C as recommended. My polyps have become more active since adding it to the system.
Grace Murray –
Consistent performance in my saltwater tank. The powder dissolves evenly and keeps pH stable. Works well with the other foundation products in the set.