2 dead chitons

[PeterEde]

Why did 2 die?
My parameters are pretty normal last test.
PH 8.3
Kh 10
Ammonia .15ppm and dropping
Nitrate 15ppm
Nitrite near 0
Salinity 1.024 working to get back up to 1.025
Mg1600 too high?
Ca 390

 

[Mr. Mojo Rising]

I would not say its not "pretty normal" to have ammonia in an aquarium. Ammonia can stress and kill a lot of things

 

[PeterEde]

I would not say its not "pretty normal" to have ammonia in an aquarium. Ammonia can stress and kill a lot of things

What is the "Toxic" ammonia level at .15? Certainly not toxic according to toxicity calculator