2 Part Dosing (Ca and Mg)

Tom R · #1 03-11-2010, 07:02 PM

Quote:

Originally Posted by George

Instance ocean salt doesn't have low level of Cal or Mg. Maybe it did, but the levels are normal now. From a sticky in RC, it has the following numbers:
Instant Ocean (new) Ca:400 Alk:11 Mg:1350

My own tests (using ELOS Mg and Ca test kits) confirm the numbers (actually I got a little bit higher numbers but it might be just my testing technique.)

I have herd this before however my last bucket purchased at J&L on Boxing Day was still showing the lower levels of Ca and Mag.

Is there anything on the bucket indicating the new mix and higher levels?

Tom R

e46er · #2 03-12-2010, 03:39 AM

my IO reads 10 DKH 360 Ca and 1150 Mg

littlesilvermax · #3 03-12-2010, 03:48 AM

Quote:

Originally Posted by e46er

my IO reads 10 DKH 360 Ca and 1150 Mg

So did mine.

walloutlet · #4 03-12-2010, 04:25 AM

I checked my numbers when I got home. I had 325 for Ca, 1125 for Mg and 7.8dKH. Used JDieck's Chemistry Calculator (http://reef.diesyst.com/flashcalc/flashcalc.html) to determine the dosing levels to bring the numbers up to where I want them. Very surprised on how close everything came to the numbers I wanted.

For example, I was shooting for about 1300ppm of Mg and ended up at 1315ppm, my Ca adjustment was even closer. Shot for 430ppm and got 430ppm using the website calculator.

That's pretty cool I thought. At least I know now that the information returned is within reason.