Originally Posted by wake49
Alklinity, tested with Salifert Carbonate Hardness Test: 9.6 dKH
Calcium, tested with Salifert Calcium Test: 380 ppm
Dosed both Alk & Calcium last night with Bi-Onic Supplements (2-part), with the reccomended dosage: 1 ml per 4 gallons. My alk is in a good range, but dosing it doesn't hurt, right?
The BiOnic Supplements are designed to be used on systems with the correct readings of BOTH alkalinity and calcium. By "correct", we mean that the test results are in proportion to one another.
If both alkalintiy and calcium are LOW, you can add the BiOnic Supplement to move both up, in the proper ratios to one another.
If both alkalinity and calcium are in the correct zone, then you can dose BiOnic as needed to maintain these levels.
If both are high, then you should not dose until they begin to fall to the lower levels within the desired rang.
The problem with BiOnic occurs when you are outside of the above situations. This generally occurs when alkalinity is normal, but calcium tests low. In this case, you should only add the calcium additive, which is Calcium Chloride. This will get the ratios of calcium back in line wtih the other buffering ions, such as magnesium and borate.
In the rare event that Calcium is high and alkalinity is low, you need a water change to replenish magnesium, borate, and other buffering ions. Adding a buffer is not generally effective when calcium is already within the correct zone. Often a precipate occurs, as a result of a pH spike.