I'm not sure what kind of cloudiness it is exactly that you are experiencing but here's a thread I posted about my problems with Aquasoil:
There's a lot of helpful information in there and great replies from members of this forum. If the cloudiness you're having is not the type that I had, I'm sure it should clear up within a few days - maybe try doing some 20% water changes daily. I wouldn't worry too much about losing nutrients. If the aquasoil is leaching ammonia is probably better to lose a few nutrients and get rid of the ammonia than leave it all in.
If the cloudiness you have IS like what I had, then here's a few things I've learned:
1) keep up with water changes. I did about 30-50% water cahnges daily for about a week and this helped a lot
2) turned down my filter because I found that the extra flow was causing the dust to stay suspended in the water and settle on my plants
3) i used some small airline tubing to vacuum up some of the dust that settled on the plants, rocks, and substrate. Without trying to kick up too much dust, I used a little straw to kick up some of the settled dust and had the tubing right next to it to suck up as much of the dust as I could.
4) besides water changing, what helped the most was changing out my filter floss often. The red sea nano filter doesn't really perform that great when it comes to cleaning out the massive cloudiness that I experienced. I saw that the white floss filter it came with got dark brown very quickly and when I squeezed it out, a lot of dirt came out. I went out and bought a large pack of filter floss and just stuffed a little in there at a time and it helped to clear things right up.
5) most of all, it will just require a little patience. I know for me it felt so hopeless and discouraging to see my first planted tank go through such hard times and I had thoughts of giving up on the hobby but it cleared up sooner than I thought (it was like a 2 week ordeal at most), and I was back to scaping, trimming, cleaning things up, and of course enjoying watching my little cories haha.
Well I hope all this helps, and your tank gets over this small hurdle quickly.