Hi i have a ten-gallon tank which houses two firebellied toads..I have it set up as 2/3 water and 1/3 land...i put gravel in that slopes towards the back of the tank and then i laid some moss over the gravel..My problem is that with the filter going, the moss always seems to be disconnecting and then starts floating around the tank in clumps...anybody have any sggestions as to how i may stop this from happening?