Saturated kalkwasser is about 2 teaspoons per gallon.
Day 1:
Add about 1.0 teaspoon per gallon of RODI top off water. This will typically bump up the pH about 0.1-0.3 after 24 hours.
Day 2:
After 24 hours your pH will hopefully be around 8.1-8.4. If your pH is not 8.5 yet increase the saturation to 1.5 teaspoons per gallon of RODI top off water. This will typically bump up the pH another 0.1-0.3 after 24 hours.
Day 3:
After 48 hours your pH will hopefully be around 8.2-8.5. If your pH is not 8.5 yet increase the saturation to 2.0 teaspoons per gallon of RODI top off water. This will typically bump up the pH another 0.1-0.3 after 24 hours.
Day 4:
After 72 hours your pH will hopefully be around 8.3-8.6. If your pH is not 8.5 yet increase the saturation to 2.5 teaspoons per gallon of RODI top off water. Now the kalk water is supersaturated so you will either need to manually shake it every hour or add a powerhead to the top water to keep the kalk suspended in the solution.
Day 5:
If your pH isn't up to 8.5 yet you will need to increase the saturation to 3.0 teaspoons per gallon of RODI top off water. You will either need to manually shake it every hour or add a powerhead to the kalk water to keep the kalk suspended in the solution.
Notes:
- The limewater must be dripped into the tank continuously. It can never be dumped into he tank! Ideally you could use an Apex to dose the limewater. I do not recommend an ATO for this because if it malfunctions you will kill your coral and fish (I've learned this the hard way).
- Siphon as many dinos out before you start this treatment. You will need to dispose the water, straining the dinos through a filer sock will not work.
- A pH increase of 0.2 per 24 hours is what I usually shoot for.
- You will ultimately need to raise the pH up to 8.5-8.7 (daytime) for about 2 weeks to kill the dinos. It's ok if the pH drops lower than that during the night.
- This is a rough guide, you really need to watch the tank closely to make sure the pH isn't rising too quickly.
- You might need to go above 3 tsp/gal of kalk, every tank is different.
- It is best to dose the display tank directly to prevent your skimmer and return pump from seizing up.
- Once you figure out how your tank responds to the kalk you can usually increase the kalk saturation faster depending on how fast your pH rises.
This is the Apex code I use for my Kalk doser. I usually use a Tom's Aqua Lifter for a dosing pump. If you have a float switch in your sump you can also tell the pump not to dose if the sump is full.
Fallback OFF
OSC 000:00/000:30/004:30 Then ON
If pH > 8.20 Then OFF
Of course you will need to increase the pH limit 0.1 every 12 hours.