Cactus soil?

I've got six cactus. I was wondering what the ideal soil is for cacus? Can I just use fox farms?

Most potting soil doesn't dry out fast enough for cacti. Coco/perlite is a good base IMO... (more perlite/sand than coco)

Also, after the soil dries out, you need to be able to re wet it. Peat has a bad tenancy to allow the water to roll away and not soak in.

ive had many cacti and they have all done fine in my backyard soil. Maybe throw in some perlite but anything should be fine, i shit you not i have a like 19yr old cacti that i bought in elementary school in like a 8oz containter. they are actually pretty hard to kill.

edit: i havent watered it in that long too

lowes or most lawn and garden centers carry cactus soil in a bag, that is what I use.

Thanks guys.

http://youtu.be/n6qvQQ3YglI.......................

Cacti can grow in a lot of soil types . Clay to sand, but I have never seen one growing in a high humus type soil in nature....and a few grow around here. Most prefer a sandy type. You have to be careful with water...it's very easy to overwater.