help stop ammonia spiking

Hi. I have a new nano a couple of months old. I’ve recently added a few new fish (about 5) all little fish to a stable Cpl mths old brand new Red Sea nano max tank. It’s been roughly 1 week & I today read my seneye to find Ammonia spiked from stable NH3 from 0.001 to today 0.030 & over the last...