Raising KH

[Davo]

What does everybody use to raise the KH in their tanks??

I have virtually zero KH and I want to raise it to 4-5 degrees.

Is baking soda safe to use. I have read posts where it states that 1 teaspoon of baking soda added to 50 litres will raise the KH by 4 degrees. Does this sound right?

Baking soda is alot cheaper than commercial KH Raisers.

Thanks,
Dave.

[Benny]

Shellgrit, the stuff you feed to your budgies and such!!! Throw some into your gravel!!! Naturally boosts the kh of a tank

[Proteus]

Shell grit, Coral Bone, Limestone (although you need a lot of it), Oyster shells...

[Davo]

How much shellgrit would I need and how do you regulate it? I have a 4x2x2 tank.

Dave.

[Merrilyn]

Hi Dave, nothing very scientific about it. I just use a handful of shellgrit, sometimes two, in a four foot tank, and replace it after about a month.

[Davo]

Thanks Ladyred,

How much does it raise the KH, ie how many degress etc.

Dave.