I am trying to cycle this 2.5 gallon ,my first attempt with salt water, I have a little experience with fresh water tanks.I purchased a little ruble rock from my local fish store ,and put it in the tank. I mixed instant ocean with distiller water but I forgot to add prime before I added to the tank ,i did put it in a few minutes later.I tested the for ammonia and it has been 0 since I started about 4 days now but I do have off the chart nitrites and about 20 ppm nitrates .I removed a gallon and added a fresh gallon still seems very high.since I have never seen ammonia should I be adding ammonia like I did when I cycled my fresh water tanks.