- Sku: R22027
- Vendor: Red Sea
Red Sea Foundation B KH/Alkalinity Powder 1 KG (2.2lb)
Red Sea Reef Foundation B is the alkalinity (KH) supplement in Red Sea's Reef Foundation ABC program. This 1 kg (2.2 lb) powder delivers the carbonate and bicarbonate buffer that stabilizes pH and supplies the alkalinity corals draw on to build their skeletons—an economical way to keep KH rock-steady in busy SPS and LPS reef tanks.
Build the full program with more Red Sea reef care and additives & supplements at Squeaky's Aquatics.
Why Reef Foundation B
- Stabilizes alkalinity & pH — replaces the carbonate corals consume as they grow.
- Part of the ABC system — works alongside Foundation A (Calcium) and Foundation C (Magnesium) for balanced skeletal growth.
- Economical 1 kg powder — far more dosing per dollar than pre-mixed liquids; ideal for larger systems.
- Make your own solution — dissolve into a stock dosing solution or add directly per the program.
- Reef-grade purity — formulated for marine reef aquariums.
Dosing & Use
- Dose to your tank's measured alkalinity uptake, following Red Sea's Reef Foundation program.
- Never add more than 60 g at once, regardless of tank size; space larger amounts 10 minutes apart to avoid precipitation.
- Test alkalinity weekly and keep Calcium, Alkalinity, and Magnesium in balance.
- For a stock solution, dissolve 1 kg into roughly 100 L (per Red Sea's KH guidelines).
Specifications
| Brand | Red Sea |
| Product | Reef Foundation B — KH/Alkalinity |
| Form | Powder concentrate |
| Size | 1 kg (2.2 lb) |
| Maintains | Carbonate alkalinity (KH) & stable pH |
| Program | Use with Foundation A (Ca) & C (Mg) |
| For | Saltwater reef aquariums |
Recommended Pairings
- Red Sea Reef Foundation A (Calcium) Powder — the calcium half of the program.
- Red Sea Reef Foundation C (Magnesium) Powder — keeps Ca & Alk in balance.
- Red Sea Reef Foundation Pro Multi Test Kit — test Ca, Alk & Mg to dose accurately.
FAQ
What does Foundation B do? It maintains carbonate alkalinity (KH), the buffer that stabilizes pH and provides the carbonate corals use to build their skeletons.
Powder vs. liquid—what's the difference? The powder is a concentrated, more economical form. You dose it per the program or dissolve it into your own stock solution.
How much should I dose? It depends on your tank's alkalinity uptake—test weekly and dose to demand. Never add more than 60 g at once.
Do I need all three (A, B, C)? For balanced coral growth, yes—calcium, alkalinity, and magnesium must be kept in proportion.
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Red Sea Foundation B KH/Alkalinity Powder 1 KG (2.2lb)
