Red Sea
Red Sea Reef Foundation B (Alkalinity)
Red Sea Reef Foundation B (Alkalinity)
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Red Sea Reef Foundation B is a concentrated alkalinity and buffer supplement formulated to maintain the stable carbonate levels your reef depends on. Alkalinity is one of the most actively consumed parameters in any coral system, and it is also one of the most consequential to get right. Stable alkalinity supports coral skeletal growth, maintains healthy tissue, and acts as a pH buffer to prevent the swings that stress corals and tank inhabitants. Swings in alkalinity, even moderate ones, are one of the most common causes of tissue recession and bleaching in SPS-dominant systems.
Foundation B is designed to work as part of Red Sea's complete Reef Foundation system alongside Foundation A (calcium) and Foundation C (magnesium), giving you independent control over each core parameter for balanced, predictable water chemistry.
Why we love it
- Stabilises one of the most critical and actively consumed reef parameters
- Acts as a natural pH buffer to smooth out daily pH fluctuations
- Concentrated formula that works efficiently in systems of all sizes
- Clean and clear in solution with no unwanted additives
- Compatible with manual dosing or any standard dosing pump
Dosage guide
Dose per 100 L (25 gal) to raise alkalinity by approximately 0.36 dKH. Adjust based on regular testing and your tank's consumption rate:
| Tank Type | Dose per 100 L |
|---|---|
| Soft coral / low demand | 1 mL |
| Mixed reef | 2 mL |
| SPS dominant / high demand | 3 to 4 mL |
Target alkalinity for most reef systems is 8 to 10 dKH. Test before starting and retest after the first week to establish your tank's actual daily consumption before increasing doses.
How to use
Add directly to a high-flow area of your sump or dose via a dosing pump on a timed schedule. Dose Foundation B separately from Foundation A to avoid interaction in the water column. If alkalinity is significantly low, raise it gradually over several days rather than correcting it in a single large dose. Rapid alkalinity swings are stressful for corals and can cause more harm than the low level itself. Once at your target, switch to a consistent daily maintenance dose matched to your tank's consumption.
Storage
Store in a cool, dry location away from direct sunlight. Keep the lid tightly sealed between uses. No refrigeration required.
Available sizes
- 500 mL
Collapsible content
LIGHT
LOW: Place coral at the bottom of the tank. Depending on the type, coral may need to be placed off sand and therefore mounted on a ceramic disc of piece of rock.
MEDIUM: Place coral at mid-range of the tank. Best placed/glued on top of a rock scape at mid-range height.Â
HIGH: Place coral from mid range to just below water level. SPS coral are shallow growing so they require and are able to tolerate intense light.
FLOW
LOW: Most soft coral do well with a small, gentle pulse. There are certain corals that can even be placed in areas of indirect flow, meaning places aside a rock structure or set into a entrance to a cave style space.
MEDIUM: Many LPS types of coral prefer medium pulse current. Most Euphyllia or corals that have more tissue structure connected to their skeleton, don’t like to be in a high flow area like the direct flow of the wave pump.
HIGH: Similar to high light, SPS enjoy being in some heavy current. Most LPS and SPS that branch encrust or plate prefer high flow that simulates the top water waves.
SKILL
ENTRY: While some may say beginner level, "Entry" is a good term to be used when starting out in the world of corals and marine life. Prior to adding livestock, you want to ensure that your reef has the proper parameters including zero levels of ammonia and nitrite. Seeing traces of nitrate in your waters is a good sign - just keep them at a lower level of 2ppm to 10ppm. Maintaining correct temperature and salinity are a huge factor to stable parameters. Starting to monitor your PH, alkalinity, calcium and magnesium is a great habit to get into to keep a successful reef.
While some soft coral don’t require too much light, having a proper reef light that puts out the proper pars is very important. You'll also want to have a good amount of flow and protected rock areas, as placing corals in their happy spot is ideal for success.
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