hi I just recently started my 20 gallon tank about a month and a half ago. my water has zero ammonia zero nitrates and about 20 nitrate. about 2 weeks ago I started adding fish, just yesterday I added about six more fancy guppies, and I noticed by the end of the night my water started to look cloudy/hazy. I was wondering if this could be from adding a large amount of fish. i’ve done some research and it says not to do a water change because that just makes the cloudy bacteria come back stronger. should I just let my water clear up on its own and just keep an eye on ammonia and nitrites? once I saw my water getting cloudy I checked my parameters again and I am still at zero ammonia zero nitrates and 20 nitrates.