How many of what size tiles do I need for a 10g tank and also a 20Long?? I've tried a few different sizes and it always ends up leaving big gaps? I want minimal gaps Also, I know the problems associated with using sand, but would it be ok to fill in the cracks between the tiles with sand? If not, what do the majority of tiled set ups use?
Thanks a million
Jess
Thanks a million
Jess