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Re: [APD] CaCO3 vs CaCl2/NaHCO3 in non-CO2 tank
CaCL2 = Calcium Chloride
MgSO4 = Magnesium Sulphate, probably he's using Epsom Salts here as
that's the commonly available form.
NaHCO3 = Sodium Bicarbonate, or baking soda in the common form.
K2SO4 = Potassium Sulphate or potash
CaCO3 = Calcium Carbonate, or chalk
I think Calcium Chloride is available from shops selling supplies for
swimming pools. Epsom salts and baking soda are commonly available
at your local supermarket and potash is available from garden stores
in the fertiliser area. I don't know of a source for Calcium
carbonate but you could use powdered dolomite from health food
stores. As stated in Clint's post, it's not easy to dissolve and
that's true for dolomite too.
Hope this helps and I didn't get anything wrong. I just tend to buy
stuff in bottles with the SeaChem label on it - probably the most
expensive way to do it but pouring liquids into the tank is just
On 16/08/2005, at 8:28 AM, Nicolas Munro wrote:
I've been looking into non-CO2 but don't understand much about what
your talking about,
what are the products or common names for the stuff your adding?
Clint Brearley wrote:
I have an 50g non-CO2 tank to which I add each week ~5ppm GH (as
CaCl2 and MgSO4) and 1/2 tsp NaHCO3 to maintain the GH ~120-150ppm
and KH 50-70ppm (also adding a bit of K2SO4 and some traces).
Since I'm not doing any water changes, should I be concerned about
sodium accumulation (the fact that my discus are still breeding
indicates 'probably not'). I'm considering perhaps switching to
CaCO3, although I've always been hesitant to use it in the past
because CaCl2 and NaHCO3 are so much more soluble and easier to
work with. But I've only been running non-CO2 for 3 months and
previously I was running CO2 and doing 50% w/c 1-2x per week so
wasn't really worried about accumulation at all. So should I be
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