I have a 3" male Square Anthias in my quarantine tank for 2 weeks. He had been doing great, not sign of external parasites, very active, and eating well ( I feed him 3 times daily).
I feed him last night and he ate everything. This morning he was not out as usual, but instead inside one of the PVC pipes. I added some food but he did not come out. Since this was not his normal behavior I checked the water parameters and seems like the ammonia was around 0.25 so I did a 40% water change. Other than the ammonia issue I noticed last night some white string looking stuff hanging from him, which it could be a sign for internal parasites. I have Metronidazole at hand, by since he did not eat I am not sure if this will help. I am thinking about starting prazipro (praziquantel) treatment. I will appreciate any feedback.
Thanks,