- Joined
- Feb 5, 2014
- Messages
- 5,794
- Reaction score
- 6,055
- Location
- Pittsburgh, PA
- What state or country do you live in
- Pennsylvania
It probably has to do with the municipality that provides your water. I am an old salt and have never used anything but tap water. I've never had algae problems so have never seen a reason to use RO/DI. I intentionally do small frequent WCs however in case there is a lapse in their normal quality. I have LPS, some softies and a crocea clam. It works for me.


