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. Offers a stronger buffering effect than competing products and serves 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.
| 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 as a substitute for an automated calcium reactor?
Yes, it may be used as an inexpensive alternative to automated calcium reactor systems with similar results.
Does this product contain any harmful additives?
No, it is free of phosphate, silicate, and organic material.
What is the recommended dosage for reef tanks?
Please contact customer service

Austin Wright –
Used this in my 50-gallon reef tank for three months. Corals have grown steadily, and pH has remained stable. No signs of algae or sediment buildup. The calcium levels are consistent and easy to monitor.
Joshua Morrison –
Good source of calcium and alkalinity. Works well with my existing water testing kit. Slight improvement in coral coloration after two weeks of use.
Oliver King –
Highly effective for maintaining stable pH and calcium levels. No need to run a calcium reactor anymore. Simple to mix and store. Works well in both new and established tanks.
Theresa Bell –
It helps with alkalinity, but I had to adjust the dosage based on water testing. Not as strong as expected for large tanks. May need more frequent monitoring.