Red Sea Reef Foundation B (Alk) Supplement
Red Sea’s Reef Foundation B is a specialized blend of carbonates and essential buffers found in seawater, designed to stabilize alkalinity and pH levels. It plays a vital role in Red Sea’s comprehensive Reef Care program for optimal reef health.
Key Features
- Provides stable alkalinity support for reef tanks
- Contains natural carbonates and buffers mimicking seawater composition
- Helps maintain balanced pH levels in marine aquariums
Specifications
| Item | Value |
|---|---|
| Product Type | Alkalinity Supplement |
| Volume | 33.8 fl oz (1 liter) |
| Form | Liquid |
| Brand | Red Sea |
FAQ
How does Reef Foundation B help maintain pH stability in a reef tank?
Reef Foundation B contains carbonates and buffers that mimic natural seawater components, helping to stabilize alkalinity and support consistent pH levels in reef aquariums.
Can Reef Foundation B be used in both freshwater and saltwater tanks?
Reef Foundation B is specifically formulated for saltwater reef tanks and is not recommended for freshwater systems.
What is the recommended dosage for Reef Foundation B?
Please contact customer service for dosage recommendations based on tank size and current water parameters.

Pippa Paige –
Used Reef Foundation B in my 55-gallon reef tank for three months. The alkalinity stayed stable even after water changes. My corals showed no signs of stress, and pH remained within ideal range. Easy to mix and consistent performance.
Cameron Russell –
This supplement helped maintain alkalinity during heavy water changes. I noticed a steady pH level over several weeks. A reliable addition to my daily maintenance routine.
Stephanie Wallace –
After switching from a generic alkalinity product, I saw better coral coloration and growth. Reef Foundation B works smoothly with my existing tank setup and keeps pH balanced.