DIY Live Rock

what kind of store sell crushed oyster shells?

 

Most people say you can find it at farm supply stores. I think it depends on where you live. I had trouble finding it locally, but maybe I looked in the wrong places :-/
The one place I found it was extremely expensive for a very small bag.

My dad found these bags at a bird-seed supply store in a little town where he lives. He said there are a lot of hobby farmers around there and that's probably why he found it so easily. Chickens eat this, I guess it's good for their digestion and the calcium helps strengthen the egg shells.

I got two bags of this:



I had also picked up some aragonite sand which you could use instead of the crushed oyster shells, but I decided to use the shells only instead of sand in the mix.



In case anyone wonders, this is what the crushed oyster shells look like:



When I was looking around for supplies, I had also found a decent source for the crushed oyster shells online. I don't have any idea about buying from this place since I never ended up ordering online, but feel free to try it out if you want:
OYSTER SHELL at MarshallGrain.com
It's only $12 for a 50 lb bag!

 

I would hope they have multiple-millenia-old knowledge just laying around everywhere ;D

 

very good point!