lost 2 fish

[maddog0118]

my porc puffer and trigger in one weeek....both eating fine...water testing was fine

 

[maddog0118]

ph 8
nitrate 20 or less
testing ammonia now some other fish look lathargic

 

[maddog0118]

slightly above 0

 

[it's chuck]

Any level of ammonia is toxic do a water change immediately before you lose any more fish. what is it testing .25? .5? what are your nitrites at? What size tank? Stock list?