Originally Posted by Cjsanders757
My last test results were on the 6th ph8, ammonia .25or less, nitrite 0?, nitrate 40-80 (tested twice with 2 differen bottles), phosphates 2, calcium 550-740, kh
Yeah, that's the likely culprit. You'll need two things to improve your water: better RO
water and something to remove the phosphate. Any phosphate absorbing media you find should help. With it at 2ppm it'll be hard to keep it going and algae will start to be an issue.
How much are you feeding? It's always better to feed tiny amounts every day than large amounts every two days.