popoeliz

Do you add salt or aquarium salt in your aquarium? But generally they are really good choice.
Or your aquarium is like african chiclid?
You may want to mix it up a bit to dilute the salt...
e.g. water with aquarium water then plain water
Some plant may not take acccumulation of salt too well

The best water from aquarium are those that you use to wash your filter material or when you use under gravel filter and vaccuum the tank.