Adding Sand To Aquarium With Fish. That said vacuuming sand bottom aquariums is a little different. This is what you are doing to your fish if you put your fish in cloudy or sandy aquarium water.
That said vacuuming sand bottom aquariums is a little different. 3Before the new filter and before you add the new sand. Once the bottle is empty of sand put the cap on in the tank to trap the cloudy water.
Placing a plate on top of the sand and pouring the water over it will keep currents from stirring up too much dust.
In fact it possible that using a siphon vacuum is the easiest way to clean a sand substrate in a fish tank. A power filter will help with this. To begin make sure you clean both the water bottle and your new substrate you can find out how to clean your substrate here. Many people who have added play sand to their aquarium feel that its too bright and takes away the colour from their tropical fish due to contrast between the sand and the fish.