Potting Soil in vivarium substrate

[melon014]

I posted this in Vivarium General too. Not sure where it goes.
I've been looking for potting soil to mix in my substrate. I've done a lot of looking around and no one seems to be able to recommend a brand name or specific kind. It's for a toad vivarium so, I know it's not supposed to have vermiculite or perlite. Obviously no fertilizer. I tried straight top soil from Ace Hardware, but it was too clumped together.
I found this at Earl May, the lady there said the only thing she thought might be a problem is the nitrogen. I was also wondering about the poultry litter. Other than that it looks okay, I think.
What do you guys think?

[Tindomul1of9]

Hi,
I have used something called jungle mix, usually bought it at pet stores.

This sounds addequate but I'm always afraid to use potting soil because I am always afraid it will become compacted. Maybe you can mix it with leaf litter and or large pieces of pine bark or something else to aerate the soil. It also makes it easier for toads to burry themselves, as they tend to do.

[melon014]

I plan on mixing it with, at least, coco fiber. depending on how much peat moss is in it, maybe that too

[little98dime]

I usually make my own mix using regular top soil ($2 per bag), coco fiber, play sand, sphagnum moss, leaf litter, and some jungle mix. I've had REALLY good success with it. I usually add a good amount of earthworm castings to the mix as fertilizer. My first tank I built is going NUTS. one bag of each ingredient will make enough to fill the bottom of a 10 gallon 4" deep about 5 times. My drainage and soil layers normally are as follows: 1" of river rocks or LECA, fiberglass screen, 1/2" layer of sphagnum moss, then 4-5" layer of soil, then a top layer of either sphagnum moss or leaf litter.