Cloudy DSB aquarium

Hi. I am attempting to start a Deep Sand Bed Salt Water Aquarium. As recommened on more then one web site I obtained play sand from home depot and put in my empty aquarium. Then I put in the power heads, filled the tank with water, added salt, and turned the power heads on. This has been about 2 week ago and I can not get the the sand to settle. The tanks IS VERY CLOUDY..more like muddy. I have found if I turn the powerheads off the tank starts to clear a bit but as soon as I turm them back on the tank gets cloudy again. The power heads are not pointing towards the sand. Does anyone know what I am doing wrong, or how I can clear this up?

Thanks in advance

I tried play sand once, it was much too fine and never did settle very well. It also would stick to the underside of my eel, needless to say, I took the sand out.

I gave up on the play sand. It just looked like mud in the tank after two weeks. I went to the my LFS and got some fine sand for a base with live sand on top. By the way the man at the fish store told me play sand would work IF you had the right sand. He told me that their is only one brand you can use - Southland - which is only available on the East coast. Well living in Washington state that isn't much help to me. Thanks for everyones help. Will try to keep you all posted on how everything worked out.

Your problem is you forgot to rinse the sand before putting it into your tank. Your tank is now full of 'sand dust' which will not settle.

No. 5 is right. It's just a particulate suspension and probably won't settle unless under the most still conditions.