RO\DI vs. Distilled

[hmello@bermexin]

Which is of better quality for the reef tank?

 

[serpentman]

Essentially both are equally beneficial. There are some concerns that distilled water may contain metals which may be picked up as it drops off the condensing coils of the distilling unit.

On the flip side, RO/DI water is only as good as the membrane and filters. Basically, if you are not making your own, make sure you trust the place you are getting it from is keeping up with maintenance on their unit.