Gh+ and KH+

guy tillmans

Guru Class Expert
Jul 29, 2008
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16
Maastricht-Netherlands
Hello

I'm using RO water for my tank. After a waterchange i use KH+ (For ponds) en GH+ (also for ponds), untill my kh is 4 en gh 6. Are those products the same as , for example mineral salts from Sera? Do they also have all the elements such as mg en Ca ?

thx
 

Tom Barr

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Staff member
Administrator
Jan 23, 2005
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KH+ is just baking soda, should be very cheap.
GH+ could be lime or maybe Kalk, quick Lime or some form of dissolved CaCO3 in a acid binder, and have no Mg at all.
They should tell you though what Ca and Mg % is added, ppm's etc.

I use a GH booster, most folks in the USA do, that's a home made mix sold through most of the on line aquarium fertilizer places here.

It's about 50% K2SO4, 28% CaSO4 and 20% MgSO4 and 1 % each of FeSO4 and MnSO4.

I do not make it, so I cannot verify, and there's also H2O attached to these salts also. These cover all my bases for Mg, Ca, K+, SO4 and top off the Fe and Mn a bit.


Regards,
Tom Barr
 

guy tillmans

Guru Class Expert
Jul 29, 2008
121
0
16
Maastricht-Netherlands
Ok, if you cannot asure me that i add mg with GH+ , i will get some gh booster in the states and some other fertilizer stuff.
But .....
I use RO water, how high must the Gh be?? 2 - 4 - 6 dh??