(1) 20oz clean container, such as a water bottle, with cap
(2) Gallons of RO/DI water
(1) Magic marker for labeling containers
Mixing the Solutions
Recipe 1 pouches of Calcium and Alkalinity are pre-portioned to make one gallon of each solution. The Magnesium pouch is pre-portioned to make the correct corresponding amount, 20 ounces, of solution.
Calcium
Fill one of the gallon jugs ¾ to 4/5th with RO/DI water. This will make shaking and dissolving the solution much easier.
Add 1/3rd of the pouch labeled "High Purity Anhydrous Calcium Chloride," cap and shake vigorously.
Repeat "Step 2" with another 1/3 of the pouch.
Add the remaining calcium chloride and repeat "step 2" until dissolved.
Fill the remainder of the jug with water, cap and label "Calcium."
Alkalinity
Fill one of the gallon jugs ¾ to 4/5th with RO/DI water. This will make shaking and dissolving the solution much easier.
Add 1/3rd of the pouch labeled "High Purity Soda Ash," cap and shake vigorously.
Repeat "Step 2" with another 1/3 of the pouch.
Add the remaining soda ash and repeat "step 2" until dissolved.
Fill the remainder of the jug with water, cap and label "Alkalinity."
Magnesium
Fill the 20oz container ¾ to 4/5th with RO/DI water. This will make shaking and dissolving the solution much easier.
Add 1/3rd of the pouch labeled "Magnesium Mix," cap and shake vigorously.
Repeat "Step 2" with another 1/3 of the pouch.
Add the remaining magnesium and repeat "Step 2" until dissolved.
Fill the remainder of the jug with water, cap and label "Magnesium."
Dosing 2 Part
First test calcium, alkalinity and magnesium levels and adjust to their correct points if needed. Levels must be at the right points before beginning daily dosing. Use the calculator at http://www.2partcalculator.com/ during this step. *Spread the recommended adjusting doses out over a few days to avoid shocking the system. Be sure to dose each solution separately and slowly to high flow areas of the tank. This is especially important when dosing the Alkalinity portion as temporary increases in pH will occur.*
Determine the daily dose.
Use the table below to help determine a good starting point for daily dosing of the Calcium and Alkalinity solutions. The daily doses of Calcium and Alkalinity will be equal amounts.
Recommended Starting Points for Daily Dosing
Pedominately LPS and soft corals
A few hard SPS corals or clams
Numerous full sized SPS colonies and clams
.2-.3ml/gallon
.4-.6ml/gallon
1+ml/gallon
Add your doses of Calcium and Alkalinity separately and slowly to high flow areas of the tank. This is especially important when dosing the Alkalinity portion as temporary increases in pH will occur.
After a few days of dosing retest Calcium and Alkalinity levels. If levels are not on target adjust the daily dose up or down. It may take some trial and error to get this part dialed in.
Once the dose is dialed in continue daily dosing until the gallon jugs of Calcium and Alkalinity are finished. At this point it is time to dose the 20oz bottle of Magnesium. This can be done entirely in one dose just remember to add slowly to a high flow area of the tank.
F.A.Q's
I see a cloud when I dose the Alkalinity portion, is this a problem? No, some cloud may be visible. The cloud occurs because the solution being added is highly concentrated and having a significant affect on the pH of the immediate area. This is why it is very important to dose slowly to a high flow area of the tank. Make sure the dose is correct and add slower.
It doesn't look like my magnesium portion has fully dissolved in my bottle after mixing with water, is this ok? Yes, it is normal for the magnesium solution to have some amount of precipitate around the bottom of the container. This is not to be of concern, just shake before dose.
I would like to dose the Magnesium portion in multiple doses instead of one dose in the end, is this ok? Yes, this is fine and many people opt to do this. Just keep the following ratio: 20oz of Magnesium solution for every 1 gallon of Calcium and Alkalinity. (20oz Magnesium:1 gallon Calcium:1 gallon Alkalinity)
This article was published on Thursday 27 December, 2007.
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