Quote:
Originally Posted by
Hammad http:///t/391136/calcium-magnesium-and-strotium#post_3467236
On 17 Feb 2012, i have added Calcium and Magnesium in my 90 Gallons tank.
please tell me when should i add calcium, magnesium and strotium in my tank?
right now, after doing calcium test, its 400 ........
Strontium is a problem because it is so hard to measure.
I recommend you look up on line the dr randy holmes-farley improved diy 2 part method. That is a very easy to follow calcium alk magnesium dosing method and explains how to maintain all three even if using commercial products.
FWIW IMHO there is very good reasons why reef tanks have to dose calcium/alk/magnesium. Water changes alone (at frequencies and levels hobbiests can reasonably do) will limit deletion of those things but not prevent declines. Which is also true of everything else like nitrates, phosphates, and so on (only with increases instead of declines). So what you have to do in the case of calcium/alk/mag is dose to replace the consumption of the tank. For things like nitrtes and phosphates IME you have to increase the consumers. If done correctly calcium/alk/mag/nitrates/phosphates will just remain at acceptable levels regardless of the water changes being done.
Still just my .02