Thank you guys for the insights! Appreciate
The ammonia test kit is from salifert but the nitrite and nitrate are redsea.
I'm feeding 3 times per day frozen brine shrimp, he is not eating pellets yet. I will look into buying an auto feeder but I suppose that first I need to make it eat pellets right?
Reading a little bit, I found that frozen shrimp tends to not be so much nutritious, I was thinking in buy another type of frozen food, what do you guys recommend?
In the shop, he was in a tank full of anthias. I suppose they were fighting for food, maybe that's why he is thin.
I will keep posted about the updates here. If he develops any other symptoms. For now, it's still breathing like that but it's eating and swimming well. I realized that he breaths fast even when resting (way slower but still looks fast to me)
Ammonia is still 0 and nitrite as well. I will do a test for nitrate but when he arrived the nitrate was around 2ppm. I have a skimmer that it's bubbling like crazy, I put the return of the skimmer on the tank itself, I was thinking that would take time to kick in but it has been more than 1 week. Thinking in maybe let it draw the water and replace it with a water change