Nano reef advice

[MoshJosh]

When pump is on are you getting good surface agitation? Is the A80 at max intensity?

Assume the answer is yes I would say. . .

Sounds like you are doing things right, but as you said, seems like something is off given the unhappy corals. Could do what I do when in doubt. . . Big clean, big water change, and run (or change carbon). . . Then sit and wait

 

[Rhetoric]

My $0.02, is that you’re right if you only add corals to the tank. But the OP added fish, and fish can raise the ammonia to levels that will negatively impact corals, especially in such a small tank.

I'd argue the best thing for high Ammonia is add more corals. /shrug.

 

[Fish Fan]

I'd argue the best thing for high Ammonia is add more corals. /shrug.

No worries! Feel free to manage your tanks the way you best see fit.