its better to silicone the tiles or slates if your going to use them
but if you can cut them to size to sit flush or even maybe a little
tight in the tank you wont have a problem, but thats the thing not
every one can cut them perfectly to fit the inside. if not your going
to be taking them out every week so you can vac up all the junk
and debris. and one of these days your going chip/scratch or crack
your tank. seen it happen multiple times...
but if you can cut them to size to sit flush or even maybe a little
tight in the tank you wont have a problem, but thats the thing not
every one can cut them perfectly to fit the inside. if not your going
to be taking them out every week so you can vac up all the junk
and debris. and one of these days your going chip/scratch or crack
your tank. seen it happen multiple times...