My 29 gallon tank is currently cycling. Last night my pH was 7.4 (as always), Ammonia .050 ppm. Nitrie 2.0 ppm, Nitrate 20 ppm. I am due for a water change today but my tap water has 0.50 ppm of ammonia in it. I am thinking about just getting 10 gallons of spring water from the grocery store (only .25 cents/ gallon) and using that for water changes. I will test the water but if the pH is close would this be better than using the tap? I have live plants and there is a current picture of my aquarium in my aquarium log if you want to see what I have going on. Just want to know if this is the best thing to do.