How fast will ammonia kill fish?

[Fishfinder]

I just transferred some fish into a newly cycled tank. I dosed up to 3ppm ammonia. It is down to 0, my nitrites are just under 1. How soon should I see negative symptoms if there are any?

 

[Peter Blue Reef]

Ammonia poisoning shows itself instantly if the fish isn't acclimated properly.

 

[Peter Blue Reef]

If the ammonia rises slowly over the coarse of weeks without intervention the burns will be evident around the fin joints and gills. Species will very. A clown or damsel will be fine in an ammonia saturated environment that would kill a butterfly fish in 12 hours. Most mature reefs 6+ months will never have these issues if kept with good standards.

 

[Randy Holmes-Farley Verified Community Expert]

I can't add anything to the ammonia discussion, but the nitrite is no concern.

 

[Fishfinder]

Everything went well. The first fish of the new tank are going on 24hrs and happy