lol thanks for the tips,i had a rethink on it because its for a tank of red jewles that love kicking the bottem up,i would be cleaning sand out the filter constantly!!!
im just setting up a breeding tank for them tho,might use it in there as there will only be a pair in at a time.
does anyone know if once the eggs are laid i can take out the rock they are attatched to and put it in a baby tank? it saves catching the little buggers later down the track