Man you gotta wait a little more. Plus you added the fish to fast I think. And you have like 7 fishes. It will take time for the system to stabilize... It took me like 8 months and is still not stable I think.
Watch that alk!
My observation is Dino invasions are a result of poor bacterial/microfauna diversity, and unstable bacteria populations. Has nothing to do with “nutrient levels” but on stability of nutrient import&export since this is what stabilizes the bacteria/fauna populations allowing them to flourish. A lot of people use antibiotics (like chemiclean) and then wonder why they get Dino’s right afterward (because their microfauna diversity was reduced by antibiotics). Dinos seem to have become an issue since people have been starting tanks without wild or curated live rock from a healthy tank (instead using bacteria in a bottle).