I have a 64l tank, filter, I set up for a week with no fish, then got 2 orandas and 1 zebra danio, a week later I got 3 more zebra danios and 3 white cloud minnows. one of the minnows died about 12 hours later. My problem is I keep checking the tank for ammonia using API ammonia kit and the levels always read 0.25 also I test for nitrates etc.. using a 6 in 1 test strip and all seems ok except the NO3 reads in the water change bit, and this is where my problem lies, should I do partial water changes as this is a little high and the ammonia or if I keep water changing does this mean my tank isn't cycling?? My two minnow are also starting to swim on their sides but only of a night time. I am feeding them flake food small amounts twice a day, this morning I gave them bloodworms and didn't feed them at all yesterday. I also did a partial water change Friday and then again yesterday. my water seems a bit cloudy as well, I don't want my minnows to die. I have read about not feeding them for 3 days and then giving them shelled pea, but what about the other fish, I am so confused please help!!