Can you use distilled water instead of RO in a reef tank?
magic Officer Emeritus Officer Emeritus Dec 27, 2007 #1 Can you use distilled water instead of RO in a reef tank?
D DaveK Dec 27, 2007 #2 You can, if the water had not been distilled in a copper still. Test the water with a copper test kit first. What size tank are you talking about? If it's of any size, long term it's going to be a lot less expensive to just get an RO/DI unit.
You can, if the water had not been distilled in a copper still. Test the water with a copper test kit first. What size tank are you talking about? If it's of any size, long term it's going to be a lot less expensive to just get an RO/DI unit.