No reason not to use tap water if it was good enough to water with in the first place.
Selzter= bad= carbonic acid.
Dmin/Distilled/RO if you want to get all fancy....
stinkyattic Reviewed by stinkyattic on . Stagnant Water..? Is it bad to let my water, prepared with nutirents, to sit for long periods of time? Should I slimply stir it or get a aquarium bubbler to mix it up when i water my plants or should I never let my water sit at all? Gr3at:jointsmile: Rating: 5