I am assuming so, I never see him digging at the substrate, but want to make sure. We have some kuhli loaches and want to switch over to sand to make them happier. We thought our gravel was small enough but it's not.
I've been rinsing and rinsing, and though it's definitely not as cloudy as when I first started rinsing, it still is somewhat cloudy. Is that ok? I've rinsed for hours. Rinse, stir, dump, rinse, stir, dump. Repeat at least 10 times. It has the bio-magnet clarifier but I'm always hesitant to use stuff like that in my tank.
Best way to rinse sand is to stick it in a bucket, shove your water hose down into the sand, and let it fill the bucket and run until the water runs clear. The sand will sink, except for the tiny particles, which will run out. Just don't turn the hose on too high or you'll be buying more sand, lol.
It will settle on its own in the tank, and will need time to settle even if you use the bucket - just not as much.