DIY Calcium Supplement

[harripool]

Hi,

I am exploring dosing my reef tank manually with calcium chloride flakes. I know what water/powder mix I need to do it but I wonder if anyone out there knows if this vendors claims are true: The advert is below. I want to ensure that the high purity grade is sufficient.

specification

High Purity Grade

CAS NO. 10035-04-8

CaCl2.2H2O 78–80%

Water of crystallisation 20% approx.

Molecular weight 147.03

SG 1.65 approx.

Bulk weight 0.75 – 0.85 kg/litre

Suitable for the following usages:

Marine Aquariums - Adding Calcium quickly to aquarium. contains no nitrates or phosphates

[metalhead]

Take a look at this, lots of good info on DIY Ca/Alk supps and dosing...

An Improved Do-it-Yourself Two-Part Calcium and Alkalinity Supplement System by Randy Holmes-Farley - Reefkeeping.com

[returnofsid]

I don't like the "78-80%" There are much more pure ingredients out there. I'd also suggest the link that was posted above. I believe it's the same link that is in my signature.