Ceramic tiles for tank bottom

[delmore]

I have a tank without any kind of substrate and would like to add ceramic tiles. I don't have the luxury of breaking down the tank, letting it dry and using the aquarium grade silicon to adhere the tiles to the glass.

Can I just put the tile directly on the bottom? It is a 36" x 18" tank, and I'll get off white 6" ceramic tiles.

[Anton Wernher]

Yes you can just lay the tiles... I did this to one of my tanks to make sure I liked the look (which I did). I later drained the tank and placed silicon between the tiles so that waste would not become trapped. Not that it was hard to vac between the tiles.. I'm just lazy.

[Dabbler II]

If you want you could put 4 dabs of silcone on the bottom of the tile in each corner, so the tile wouldn't right on the bottom of the tank and it would be easer to pick them up to clean under them.