Common tap or drinking water contains minerals (particularly calcium salts) that will quickly build up and kill the plant.
To the Sodium alginate from the initial extraction solution, a calcium salt is added.
The plates are typically hard, being impregnated with calcium salts.
Calcification is the accumulation of calcium salts in a body tissue.
Magnesium salt might do a little different than calcium salt.
It is either added directly or created from reactions with its sodium, potassium, or calcium salt.
A Continuous process for the production of soluble calcium salts was developed.
There is some debate about the different bioavailabilities of the different calcium salts.
The calcium salt is also sometimes used, especially by people restricting their dietary sodium intake.
As a supplement it is usually sold as a calcium salt.