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Re: [APD] KH with no CO2

IUf you are doing 50% weekly water changes, you should do
fine adjusting the KH after/along with the water change.

Scott H.

--- Vaughn Hopkins <hoppycalif at yahoo_com> wrote:

> I set up a 29 gallon tank a couple of weeks ago, with
> water sprite, 
> Hygrophilia Difformis, microswords, java moss, java fern,
> some 
> ludwigia, etc., but no CO2, because I still haven't
> received the bottle 
> I ordered on ebay.  I have 51 watts of T8 fluorescent
> tubes, Fluval 104 
> filter using a spray bar at one end and an extended inlet
> at the other 
> end.  The plants are mostly growing now, very slowly, but
> growing.  I 
> have been fertilizing using Gregg's chemicals, somewhat
> less than if I 
> had CO2.  And, I changed 50% of the water after a week. 
> Today I got a 
> KH test kit.  The water is less than 1 degree KH
> hardness, but 13 
> degrees GH.  So, I checked the tap water for KH and it is
> 3 degrees.
> Now, my question is:  are the plants growing by utilizing
> carbonates 
> for their carbon, thus depleting it?  And, when I add CO2
> will that 
> depletion continue, or will the plants just use the CO2? 
> I am trying 
> to slowly bring the tank water to at least 4 degrees KH
> hardness before 
> I get the CO2 going.
> Next question:  Assuming the plants will deplete
> carbonates, what kind 
> of schedule of baking soda addition would be appropriate?
>  I tried 
> looking this up, but am just too lazy to stick to it.
> Oh, and I just moved in 6 cory cats and 6 silver tip
> tetras - they will 
> have open  house next week and everyone is invited!
> Vaughn H.
> _______________________________________________
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> Aquatic-Plants at actwin_com
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