I have two cycled fluval spec III each with a female betta. I use betta spa (1ml per gallon) in both tanks. My water is hard. My normal parameters from API liquid kits are Ammonia 0 ppm Nitrite 0 ppm Nitrate 5-15 ppm Ph 7.8 Gh 240 ppm Kh 240 ppm Should I mess with my Ph/Gh/Kh values or leave it. I normally run my filters carbonless. Should I up my usage of betta spa or get water softener pillows or my water change with 1/2 distilled water and 1/2 tap water?