Kalkwasser
 

Gonna start using some Kalkwasser in my 120 mixed reef medium stocked
Going to use the ato method, I have a 5g bin, going with 5 teaspoons of kalk, my tank uses 5g of ro water every3-4 days does anybody see anything wrong with this, I also have a dosing pump but don't know how to convert over, meaning how many ml a day would you dose
Do people still use kalk

Not used nearly as much as it used to be, but your plan is how I ran mine successfully for years.

I use Kalk and mix it in a 2 L juice jug which I manually dose (work at home). What you're planning sounds fine.

Curious to know why Kalk is not as popular anymore?

Kalk is not as reliable and very caustic, reactors are stable and easier and two-part for smaller setups is safer too.

I use it religiously. Love the stuff. I have a 10 gallon Kalk tank that has an Innovative Marine Accu-Drip that goes into the return section. Works great. I rarely have to supplement Ca or Alk. My drip is set to about 1 per second. Keeps my parameters very stable.

I would use a reactor and use it with my auto top-off, but I evaporate about 7 gallons of water a day, so I think that would be a little much.

You just have to worry about swings. I got really sick a couple weeks ago, and let it run out. With no kalk dripping on my system, my alk dropped to 5.4 dkh. Got kalk burn on all the tips of my SPS. I'm about a week after getting my levels all correct again, and the corals are almost back to normal. But goes to show you that things can go wrong if not attended to properly (like everything in this hobby).

Kalk on low-medium demand tanks is still a great way to supplement the tank IMO.

I use a kalk stirir with a separate 50ml/min dosing pump for accuracy. I also dose 2 part but like the kalk for its PH raising properties and ability to bind phosphates.

I am looking to set up 2 part dosing, right now I just add manually but it seems that kalk has lots of benefits.

I use kalk in my ato in my 125g set up (160g total water) works good I still need to dose calcium and mag manually I evap about 5 gallons every 2.5 ish days depends on summer or winter , and I keep the mix saturated In my 10 gallon ato tank works good I say give it a try :)

I've never had better results than when I used kalk. In fact, I've gone back to it recently with this modified reactor:

https://www.instagram.com/p/BBgfhRai...-by=reefinabox

Pretty simple setup; modified the lid of an old Vertex UF-15 to run 1/4" lines -> built a base with a computer fan -> threw magnets on that -> tossed a magnetic stirring bar into the reactor -> connected to ATO -> BAM!

Edit: Hmm, image doesn't seem to be showing, but if you right click on the icon and "view image", it will take you to it.