Well i use pool filter sand. Half the price of the sand @ your local fish store & you get 10x the amount of sand, ( 50 lb's for $10- )it also drops back to the bottom fast if it's kicked up so chances of it getting sucked into a filter which in turn can screw up the propeller & become costly...Which is also nice for using a siphon gravel vac you dont end up sucking it all up even if your digging deep with the vac.MTbiker055 said:I have a 29g cichlid tank that is currently filled with pea gravel. I've been looking on this website and have found that a lot of cichlid tanks have sand. So I was wondering is it worth it. How easy is it to maintain? Is it easy to clean? What if you have "earth eaters" will they move it around like gravel? Do you have to clean the top of the sand off every week or so?