I don't see why not. They say it's good for ponds and aquariums. just rinse well. I used a 5 gal. bucket filled it half way with sand and ran water in it untill stuff stopped floting and water was clear (You may already know this). GL
Hummm...that is weird...It works for some but not others. It is commercial sand. It says for use under walkways and stuff like that. It also says ok for aquariums.
if it says it's aquarium safe I don't see why not. I expect that it would be a thicker grain than Play sand. Please post pics and your thoughts on it when the project is done!