Ammonia toxicity

[bamf25]

What is the level on most test strips when Ammonia becomes toxic to fish. Meaning we start seeing changes in respiration, red spots etc.

[disc1]

Any

[briankmarsh1980]

.25

[disc1]

Oh sorry, my post didn't go all the way through apparently. It was supposed to read any measurable amount by your test will be toxic.

[Monkeyfish]

+1. Some fish can survive a short period of time with a little ammonia in the water, but ANY ammonia is toxic.

[thegrun]

+1. The fish may not die right away, but ammonia does permanent damage to their gills.

[disc1]

And from what I understand it is painful for them.

[bnumair]

+1 just a very small trace of ammo is lethal to fish over time. its burns their gills and kills slowly over time.