You know I think all this hubub about Discus need exactly this water Ph and this water hardness and that exact thing is a little bogus. My LFS keeps their discus in city water. Yup city water, and if you looked at them you would think that they would be in RO/DI water. I'm not sure how many water changes a week they do on their discus tank but I'm willing to be 2 times a week would be the maximum. They are just as beautiful as any other discus. They act normal, look normal, eat normal, and over all are very very healthy fish. Now keep in mind that they did get a little lucky with the city water. Its a soft water but the Ph runs about 8.2 ish. For this reason I have been thinking about trying my hands at discus keeping once I can find a little larger tank. I understand that they probably wont breed without the correct water conditions but the LFS have had eggs before though no actual fry. Though the lady at the LFS has had a few of her customers come in and say that they have had fry from her discus, if thats in the city water or not I dont remember. But My whole point is that I don't really think that discus are these fish that absolutly need this or that. I think it can very some and still have happy and healthy fish.