So, I've put my sand and water into the tank (not the sump yet, I'm waiting on the return piping glue to dry). I have a powerhead going, and the sand and water have been in about 3-4 hours. The water is really murky, I can't see the wall behind the tank really, but I can distinctly tell the water from the sand bed.
It looks to me as if the water is really dirty or something? I did rinse the sand before I put it in, maybe its possible there was still dirt on it? I'm not sure, it just doesn't look like there's sand up in the water, just that it looks dirty. The substrate is 1-2mm coral sand.
Any opinions/ways to fix this?