Roofing Tile For Tank?

[kniesh]

Hello, I have recently had a roofer out doing our roof. I found a great piece of roof tile for a cave for my Catfish tank. My question is ' is it going to be ok in my tank'? It isn't slate, it is actually the newer type tile about 2" thick. Thx in advance.

 

[The-Wolf]

do you know what it is made of?
do you know if it has been chemically treated with an anti fungal?
do you know if it has been glazed with a lead based glazing agent?

if the answer to any of those is no, then don't risk it.