I've had Discus before and I know this question has been asked many times but I want to hear from folks that have successfully kept Discus in tap water. I'm thinking about giving them another shot and was going to use half RO and half tap with a bare bottom tank. I've been eying some Super Red Mellons on Aquabid and the seller assures me his are raised in tap water and Ro water would not be necessary. I had bad luck the last time I tried tap water so I'd really like some feed back on this issue. Thanks