Magnesium mix dosnt dissolve!?

[artursm15]

hello so im using aquafair mag mix and instruction says:
Dissolve 380 g of magnesium chloride hexahydrate and 48 g of magnesium sulfate heptahydrate in 700 ml deionized water and fill it to 1,000 ml.
but i just want find out is it normal that after mixing it its cloudy (all white) and after 1h+ leaving it untouched there is arround 1cm white layer in bottom of my bottle where i mixed it ?!

 

[AdamNC]

Can't say about that brand for sure but my BRS mix doesn't leave anything unmixed. Maybe a bad batch?

 

[jayball]

Are you sure you got the measurements correct? Will the muck from the bottom dissolve if added to a little new rodi? (if it is a contaminant that precipitated out it will not likely redissolve with just water as the solvent) If it is undissolved MG try putting the jar in a hot water bath for a while and shake again.

 

[artursm15]

Did a small test just in glass cup with arround 10grams it dissolved without any problem now im trying to mix new one add only 380g magn sulfate and even tossed it in my blender but with no luck will keep trying..

Are you sure you got the measurements correct? Will the muck from the bottom dissolve if added to a little new rodi? (if it is a contaminant that precipitated out it will not likely redissolve with just water as the solvent) If it is undissolved MG try putting the jar in a hot water bath for a while and shake again.

 

[artursm15]

What will happen if i will mix this in 5L instead off 1L ? I know it will dissolve 100% but whats the down side on that ? I still will be able to rise my mag but will have to use more off this solution and thats it right ?! I will just have to teat more until i will find what it takes to rise from 1300 to 1310mg right ?

 

[bertoni]

That's normal for a magnesium supplement. Just shake well before dosing. The combination of magnesium sulfate and magnesium chloride tends to cause some "slushiness". You might be seeing some calcium sulfate, which is fine to add to the tank.

 

[artursm15]

But how people dose it with dising pumps then???

That's normal for a magnesium supplement. Just shake well before dosing. The combination of magnesium sulfate and magnesium chloride tends to cause some "slushiness". You might be seeing some calcium sulfate, which is fine to add to the tank.

 

[bertoni]

You can use a solution that contains only magnesium chloride or only magnesium sulfate. If you dilute it enough, you might get more (or all) of it to dissolve, but you can dose the liquid part as is, although the concentration will take some time to estimate.