Quote Originally Posted by vman181 View Post
I'm sure the Edwards Aquifer water is good stuff but nothing is better for your fish and coral than RO and better yet RODI. Plus like I said I tested the "RO" water from the store and it has a TDS reading of 10ppm. This tells me the Edwards Aquifer water isn't that great for my tank.
There is nothing better than RO/RODI water? Aquifer water isn't that great? Both are true, and both are false. Depending. Take a 5g bucket and fill it with Aquifer tap water. Run AC on it for two days. On that 2nd day BUY 5g of RO water. Run a battery of tests on both. Leave nothing out...test for dKH, cal, Mag, pH, ammonia, nitrate, nitrite, phos, potassium, iron, silica and so forth. Write down the results you get for both. Now what you want to do is factor in what it is going to cost, along with the time and effort, to replace specific levels to get either sample of water to the point where you want it when it comes to SW let alone a reef environment. Aquifer water will win every time.