I have 2 oscellaris for over a year and they have been very compatible; always staying together and sleeping in the same area.
In the last week, I have noticed the big oscellaris picking on and nipping at the small oscellaris. It has been so bad ,the small one has started to hide near the uptake tube of my ecosystem which I have been discouraging.
Also I have noticed lost scales and now little white spots on that area of lost scales on the large Oscellaris. It swims along fine and eats and eats and appears in no distress.
Why did they stop getting along?
Is the big one sick?
Will an anemone help the little one for protection. I have tried an anemone in the past but since they are captive bread, they didn't go to it. And since the anemone died about 6 mths ago I have not replaced it.
I change the water every 2 weeks and my h20 parameters are fine. All my other fish are fine. I have added nothing to my 60 gallon tank in over 6 mths and everyone was happy until this last week.