I just set up a new 10 gallon tank three weeks ago, I did a fishless cycle with Nutrafin Cycle four days before adding my fish, 1 Betta, and 3 platies. Two platies have died
, and the Betta seems happy, the remaining Platy seems sick. Yesterday I tested the water and the Ammonia was 0ppm but the ph was 7.6. (Not sure if higher).
7.6 is the maximum measurement in most of ph test kits and anything above that will give the same color (blue). I have read on Internet that 7.6 is OK for most fish, I am confused and do not know what is killing my fish.
How can I know if I have a higher ph in my tank? and if so how can i lower it? Please help!!.