anyone use Kalk+2?

Wondering if anyone doses kalk+2?
If so, how do you like it?
How does it preform?

Thanks

 

Don't know what you mean by +2???? All my top off water goes through kalk unless it is mixing. I use it on top of a Ca reactor to keep my Ca around 450.

 

this stuff right here.
Reef Aquarium Calcium Supplementation: Brightwell Aquatics Kalk+2 at Drs. Foster and Smith

 

I believe it's kalk w/ magnesium/strontium added. I don't know anyone that uses it, looks too expensive to me, much cheaper to just use regular kalk and get some bulk magnesium supplements. Strontium generally is replaced with regular water changes AFAIK anyway.
Brightwell Aquatics Kalk+2 - Advanced Kalkwasser Supplement

You can get a 4.5lb bucket of kalk for a dollar or two more than the price of 8 oz of the kalk+2.
Bulk Reef Supply - Bulk Reef Supply

Then a gallon of magnesium supplement is another $10.
Replacement Magnesium pack (Full Gallon) Bulk Reef Supply

 

Ah looks like DFS has better prices on it, $13 for about 1lb. Still 4.5lbs of kalk for $12 is still a much better deal even though you need to buy a separate magnesium supplement.