Join Date: Nov 2003
Location: Portland, Oregon
I've been looking around on the Internet and haven't found any really good information on using rainwater in aquariums.
If you followed the pH Increasing thread in this same forum, you'll see that I did some testing of the local rainwater here in Portland, Oregon and it appears that it would be usable with just a little bit of carbon filtering.
I was going to give it a try in a 5 gallon tank that has been sitting empty for far too long (2 weeks). I'll report back on my findings when I start the experiment and then give updates along the way.