You'll only need a small amount for 1 humid hide. Maybe about a 1" thick piece the short way through the block. You can always add a bit more.
To be over protective, throw a piece of paper towel on top of it or wrap it like a pillow so your leo doesn't ingest it by accident.
To be over protective, throw a piece of paper towel on top of it or wrap it like a pillow so your leo doesn't ingest it by accident.
It's kind of tough sawing off a piece of the brick. If that's all you need, consider paper towel as others have suggested. Otherwise, it makes sense to soak the whole brick and then get a large (really large) ziploc to store it in. It can stay like that indefinitely, I've never had it mold.
Aliza
I use eco earth in my lay boxes which double as humid hides when it's not breeding season. I agree that it's much better than paper towels but it does need to be re-moistened occasionally. I have stored damp eco earth in a ziploc for upwards of a year with no problems. It stayed damp, too, so when I needed to use some I could just scoop it up.
Aliza