Rising KH

mfbonfante

Junior Poster
Apr 29, 2005
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Italy
My tap water has KH 4. It is necessary to rise it?. I was suggested to utilize sodium carbonate. Is there any issue with this product?. Is sodium toxic for plants in the long term?.

Mariano
 

srozell

Guru Class Expert
Jan 24, 2005
110
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16
Re: Rising KH

4 what?

4 dKH
4 ppm
4 drops of solution in the test tube

4 dKH is probably fine
=71 ppm or mg/l
 

reiverix

Lifetime Members
Lifetime Member
Jan 29, 2005
270
2
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Re: Rising KH

Sodium BIcarbonate is plain baking soda. The Na content of plain baking soda is not an issue.

My RO starts out with a KH of 0. I add 1/2 tsp of Sodium Bicarbonate to every 5 gallons of RO water to raise the KH to around 4-5 degrees. That's proper alkalinity for a planted aquarium and it all comes from sodium bicarbonate. I have no salinity issues and neither does anyone else that uses it. It's safe.

The ferts we add to our freshwater aquariums are salts. The Equilibrium that I use to reconstitute my RO water contains minerals in the form of salts. They aren't the same thing as adding table salt or aquarium salt though.

Now, if your KH is already at 4, it's pretty much perfect. Leave it alone and consider yourself lucky. Save the baking soda for the fridge and the occassional teeth whitening :)
 

srozell

Guru Class Expert
Jan 24, 2005
110
0
16
Re: Rising KH

random_alias said:
Save the baking soda for the fridge and the occassional teeth whitening :)

I've tried this on my tetras with a great deal of difficulty. Does anyone have any success whitening tetra teeth? :D
 

Laith

Lifetime Charter Member
Lifetime Member
Jan 24, 2005
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Geneva, Switzerland
Re: Rising KH

srozell said:
I've tried this on my tetras with a great deal of difficulty. Does anyone have any success whitening tetra teeth? :D

Are you sure you're doing it right? You need to make sure that the powder covers each tooth entirely and then rub it in a bit :p !