Brightwell Alkalin 8.3 Liquid PH Buffer
Complete source of elements and molecules directly used by corals, clams, and other reef-building invertebrates to create skeletal material and support growth. Provides calcium at 140,000 ppm, along with strontium, magnesium, and potassium in ratios matching those found in aragonite.
Rich in carbonates derived from aragonite, this product supports aragonite formation and helps stabilize pH. It is stronger than competing buffer solutions and can serve as a cost-effective alternative to automated calcium reactor systems.
Free of phosphate, silicate, and organic material. Formulated by a marine scientist for optimal reef health.
Key Components
| Component | Concentration |
|---|---|
| Calcium | 140,000 ppm |
| Strontium | Approximate ratio to calcium |
| Magnesium | Approximate ratio to calcium |
| Potassium | Approximate ratio to calcium |
| Carbonates | Derived from aragonite |
FAQ
Can this product be used to maintain alkalinity in a reef tank?
Yes, this product increases alkalinity and helps stabilize pH, making it suitable for maintaining stable conditions in reef tanks.
Is this product safe for use with other reef supplements?
Yes, it is free of phosphate, silicate, and organic material, making it compatible with most reef supplements.
How should this product be stored?
Store in a cool, dark place away from direct sunlight and out of reach of children.

Oliver Powell –
Used this in my 120-gallon reef tank for three months. The calcium levels stayed stable and my corals showed better growth. No signs of algae or imbalance. Easy to mix and effective.
Max Anderson –
Good source of calcium and carbonates. pH remained steady even during water changes. Slightly stronger than expected, so I use it in smaller doses.
Max Springer –
My clam population has grown steadily since adding this buffer. No issues with water chemistry. Works well with my existing calcium reactor setup.
Amelia Powell –
The product is clear and easy to measure. I noticed a small increase in alkalinity after a week of regular use. No side effects observed.