I like pool filter sand personally, easier to clean. The only thing is if you don't have MTS, then you will have to manually stir the sand on occasion so anaerobic pockets don't build up. The MTS will do it for you. And for cleaning, you don't do a regular gravel vac, but instead, wave the vac across the top of the sand to kick up some of the crud and suck it up.
55G Filstar XP3 - 16" Fire Eel
75G Medium Planted - Filstar XP3 Low Light - Established Feb 2006