Be carefull with ammonia treatments. some of them bind ammonia into ammonium which is a good thing. others adsorb it or bind it into compounds that aren't available to the bio-filter. this will stall or increase the length of the cycle and more or less create a dependancy on that product. I know very little about ammonia products, but do know that prime will work wonders and not hurt your bio-filter. Amquel is supposed to be in the same class but doesn't always get the rave reveiws that Prime does. Whether or not you use them is your call. If you are getting along fine with the water changes and the ammonia levels are staying below 0.5 ppm you don't need them, If the ammonia is too much for you to keep in check via water changes etc. then I'd get some prime and use it until things get going good. As said though. the bound ammonium will still show up as ammonia on a lot of test kits. so it will be tough to monitor the true danger to your fish while using prime. I know multiple water changes everyday can be a big hassle, and for someone like me who has a tendancy to make a mess they are downright frustrating when you try to hurry. From the looks of things though you are doing much better for your fish at this point, and things will get much easier and better in a couple of short weeks. With or without an ammonia treatment product.
dave