no level of ammonia is safe for fish, you need to go out and get a product called CYCLE and add it to the tank so that your fish arent harmed by the ammonia, i would be surprised if you had any nitrates at this point, there is supposed to be a little nitrates in the water this shows that the filter is cycled but any amount of ammonia or nitrites is bad, using the product i advised with the dosage it says will keep your fish safe and cycle the filter, also you are going to need a bigger tank and hopefully the crayfish doesnt eat your parrot cichlid, also could you post a pic of the parrot cichlid? is it blue as in DYED because if this is the case then it probably wont live that long as this is a very harsh method that they use and literally dye the fish's skin, its a horrible practice and you really shouldnt support it but not a lot of people know about it so just learn from this and dont support the practice with any future fish you buy
oh and WELCOME to MFK there is a lot you can learn from the people on here