Dolomite use?

Timorisu · 06/09/2020, 09:57 PM

Hi, recently i bought dolomite for plant fertilizer needs and have a lot leftover, and the package says it contain 30 % CaO and 21 % MgO, i've wondering, is anyone ever using this for maintaining calcium and magnesium levels in their tank?

bertoni · 06/09/2020, 11:39 PM

You can use chunks of dolomite in a calcium reactor. It won't dissolve without the addition of carbon dioxide. You'd need to use only a small percentage of dolomite, or the magnesium level will be driven up too much. A number of people have been successful using a bit of dolomite in their calcium reactors.

06/09/2020, 09:57 PM	#1
Timorisu Registered Member Join Date: Feb 2020 Posts: 3	Dolomite use? Hi, recently i bought dolomite for plant fertilizer needs and have a lot leftover, and the package says it contain 30 % CaO and 21 % MgO, i've wondering, is anyone ever using this for maintaining calcium and magnesium levels in their tank?

06/09/2020, 11:39 PM	#2
bertoni RC Mod Join Date: Mar 2002 Location: Mountain View, CA, USA Posts: 88,616	You can use chunks of dolomite in a calcium reactor. It won't dissolve without the addition of carbon dioxide. You'd need to use only a small percentage of dolomite, or the magnesium level will be driven up too much. A number of people have been successful using a bit of dolomite in their calcium reactors. __________________ Jonathan Bertoni