Hey all thanks for your time,
I have a 25 gallon tank with appropriately 15 Guppies, 4 Mollies, 2 baby Plecos, 8 Guppies (1 month old) and 5 (3 day old) fry in a breading tank.
I used to do regular water tests at my pet store but stopped after they were returning as perfect each time, now I...