To be more specific...
My problem is I have 2 chins and they love lava ledges. Both chew on them but my newest one will eat through 1 a week. I've tried purchasing these in bulk but the best price I could get is 4.75$ each.
I'm wanting to make some myself using pumice powder but pumice powder in itself won't form a block and frankly large pumice rocks are a bit expensive.
So I was looking into light weight concrete which is cenet mixed with pumice. The finished product looks indentical to the ledges from kaytee or all things living.
Is cemet harmful to chins? I'm not sure how much pumice is consumed if anything but their health is my main concern before I build my own.
Id also like to build other lightweight concret things other than just jumping ledges.