Also, if it does cloud up your tank, mine did, you can just give it a day or so and it will settle. With substrates like sand and flourite, clouding is hard to control during the adding water phase. A good way to limit it is to place a dish on top of the substrate and pour water slowly over that to disturb your substrate minimally. After you get it about 6 inches over the gravel, plant your plants. This will keep the dust from getting too our of control and will be easier to plant in. After you plant, slowly fill the tank, if you still have space for a dish, it would be best to keep it there to mitigate the current. When you have enough water, take the dish out and just top off the tank. If you are keeping lots of plants, its possible to introduce fish right away, but if its dusty it might be best to let the dust settle. your filter will also absorb a ton of the dust, you can just rinse the filter pad off with clear aquarium water when you do your first water change.