Check any cycle analysis post on the site, I'm always polar opposite from the crowd, it's my m.o. (and it's how my friends and I build giant work threads, testing crazy claims)
There's some clues here that don't support ammonia burning at all, in this display
The only missing clue needed is the usual: a tank pic
So that we can assess the surface area in the tank
If the surface area looks like any other reef you did not have an ammonia control problem in a display. Nobody ever does
But if it's devoid, and your fish were huge and the feed was tremendous, then I buy it 4% chance.
What kind of fish were they? Tiny, small, or huge with huge feed requirements?
As soon as this prediction pans out I'm linking this excellent cycle challenge threads to our other cycle challenge threads
Canigedda full tank picture?
Causatives for their behavior can be things other than highly highly unlikely free ammonia control issues: display reef tanks don't get those problems. Actual fish disease is more likely, or acclimating issues etc
But not ammonia, from a tank with coral in it and the usual rocks.
You're going to need a tank with no rocks in it for this suspect event to be true. If you have rocks, I'm 1000% certain you didn't have a cycle issue
That's what we've spent about ten years patterning out in the hundreds of cycle threads collected so far. It only seems like ammonia was the cause, we're all trained to think that so we'll instantly buy something as a remedy... prime, Dr Tim's bottle bac etc.
The chance you have an ammonia issue is zero if there's rocks in that display.
