Hi. After I did a water change, 3 of my zebra danios stopped eating. It has been since yesterday that they started doing this. I did a water test a while back (6 in 1 easy strips tetra) and it said there was chlorine in the water, although I added a dechlorinator and let the water sit for 5 minutes. They seem healthy and active, (apart from not eating) They have never done this before and I have had them for ~3 months Their tank was not originally cycled but is cycled now. If you want parameters here they are (they might not be accurate) (6 in 1 easy strips) Nitrate =20, Nitrite = ~0.25, Total hardness (GH) is 300, Chlorine = 0, Alkalinity = 60, Ph 7.2. Please help me because I love my danios, and don't want them to die.