Elixir Gardens Calcium Carbonate (Limestone) Powder | Natural Soil Conditioner & Liming Agent | Reptile, Livestock, Poultry & Pet Nutritional Supplement | 500g Polythene Bag | Treats upto 2sqm

I bought this for the rather unusual purpose of raising the PH level in my 100,000 litre pond (yes, it’s very very large). As it’s rainwater fed the PH tends to drop over time. I worked out that 5kg desolved In a few buckets of pond water would do this and it raised the PH from 6.9 to 7.6 which was what I wanted to achieve.No fish casualties so Will buy again.

Used this to make homemade chalk paint but found it slightly too gritty. Next time I'm going to try to find a a finer powder. Having said that, mixed 2 parts emulsion paint to 1 part chalk and made a perfectly adequate chalk paint for crafting. Gives a nice rustic finish and any rough bits can be sanded off when dry.

Great value for money and arrived sooner than expected.

I bought this for a completely different reason than to use on my garden but it didn’t work out so I thought I’d chuck a bit on my hydrangeas which I did and what a difference it’s made, the colours seen so much more vibrant and my hydrangeas just seem more lush somehow. I’m sure it will work on all plants so it’s worth giving it a try.

This worked perfectly, a little goes a long way, and at a reasonable price would use again good result obtained

As I could not really afford chalk paint in all the colours I wanted, I have been googling 'make your own chalk paint'. Anyway, I have been adding -this fine calcium carbonate powder to emulsion paint and have been using it to paint - so far- a pine bookcase and a pine stool. The effect has been really good, and what I had expected. (I have, on both occasions, then used Annie Sloan wax to give it a 'finish' - but you won't need to, if you want a fully matt finish).

We use it for helping improve ph in n water

Easy to use.Reasonable value for money.I would recommend.