Originally Posted by
Bang Guy
http:///forum/post/2849270
Never add stress coat to a marine tank IMO. No good can come of it.
The Charcoal stage of an RO filter removes Chlorine and chemical contaminant in the water.
What comes out of the DI stage is water, nothing but pure Dihydrous monoxide.
+1. make sure you have a carbon stage or two because if you don't chlorine will destroy the ro membrane. Also, make sure you aerate the water from the di because it is pure water, no oxygen is in there.