brown spots on yellow tang

seahorse11

Member
I had a yellow tang for about a week in QT tank. It started getting a brown spot on one side which spread to the other side and then to the top of iys head. It stopped eating and stayed at the bottom. I added some fungal medication but that did nothing. It eventually died. Does anyone know what it was?
The tank is a 10 gallon and has been up for about 6 months and there is nothing in there except a small piece of LR which I have taken out. The parameters are all fine except for a slight raise in ammonia ( 0.25). Is this enough to kill the fish?
Any suggestions?
 

beth

Administrator
Staff member
Originally Posted by seahorse11
The parameters are all fine except for a slight raise in ammonia ( 0.25). Is this enough to kill the fish?
Any suggestions?
Stress related to toxic conditions......ammonia. Any ammonia will kill fish.
 
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