Tile on floor of tank?

[bubblez13]

Has anyone tried tile on the floor of their axolotl tank? I am specifically thinking of something like a pebbled tile and then sand in between the rocks so that plants might have an easier time growing. Something like the image below. I know that smaller rocks are not recommended but these would be attached to the backer to prevent accidental ingestion. We have not started decorating our tank yet so just wanting to crowd source some ideas prior to starting. Thanks!

 

[Barrett]

If it's larger than their head it won't go in their mouths. I use rocks all the time in my tanks with a sand substrate. No issues.