[Roddy Conrad]

Quote: Originally Posted by Brutuscz Roddy..I had a quick question. Have you ever used pulverized limestone to replace minerals. It is sold in home depot..40lbs for less than $3. It is 87%calcium. Some guys in the reef hobby are using it...just wondered if it had any practical application in a koi pond. My water is very soft..so, I was looking into it. Thanks for any advice.

Limestone won't dissolve fast enough in a koi pond to do any good, even the pulverized version won't dissolve enough to do any good.

Maybe in a reef tank it works differently.

And YES I tried it, didn't work at all.