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2bacop
Guest
I bought some tile for Callistas and my new leos tank, well the tile is like 2 mm to big for the new leos tank but Callistas is fine. Anyway my question is do I need to put any type of grout in between the tiles. I was thinking sand and then sealing it so it was hard and not able to be eaten but I am a little scared to risk it for 1 and 2 I'm not sure what I would seal it with. If I do need to use something what is the best thing to use?