Hi im still fairly new to this amazing hobby. I've had my tank for about 7 months now and its been doing pretty good other then the fact that I learned the hard way not to use paper test stripes. My aquarium went through the hole initial cycle phase pretty well. I have a 45 gallon tank. 3 angels. 3 Cory cats ( lost a few in cycle phase with slow reaction because of expired stripes)3 pleco. And about 8 tetras again lost a few. It's been about 5 months since that and all was good. So i finally decided to splurge on a couple of younger discus and a couple of hillstream loaches. And 4 plants. Now about a week later and caught very early this time my tank started to cycle again. My ammonia and nitrites spiked pretty high. It's been 4 days since. I've done water changes and been treating with prime and my normal maintenance cycle and conditioner. I now have the nitrites almost perfect but ammonia is not changing. It's was darn near 4 ppm today. I know prime might hide it.my fish show no signs of stress. They are eating. They seem alittle exited at most. Did I add to many fish at once?or plants? I have noticed the foggy coming and going so i no there are blooms happening. Any thoughts?