Blond Naso stopped eating

[Gundy]

I added him to my display about 4 months ago. He came in very thin and didn’t eat frozen foods for a few weeks but he started to eat and has been very healthy. He has always had a good appetite and ate a variety of foods. He is active, looks healthy and his coloring is good. A few days ago he stopped eating and is not interested in eating any food.
What could be wrong with him? If he was collected with cyanide, what are the symptoms? Any help would be appreciated. Thanks

 

[unclejed]

I added him to my display about 4 months ago. He came in very thin and didn’t eat frozen foods for a few weeks but he started to eat and has been very healthy. He has always had a good appetite and ate a variety of foods. He is active, looks healthy and his coloring is good. A few days ago he stopped eating and is not interested in eating any food.
What could be wrong with him? If he was collected with cyanide, what are the symptoms? Any help would be appreciated. Thanks

Well it has been 4 mos. and he was doing fine so not the cyanide. How many days has it been since he is not eating? If it is 2-3 days don't worry, some fish will do that. I would say longer than 7 days and it may be an issue. In the mean time, get some food with garlic and try that.