I had a nice and healthy Royal gramma. It wasn't shy and was always front and center. Yesterday, it was nowhere to be spotted. Today, the same situation. It seems he vanished. I checked the filter socks, etc. and nothing. BTW, my tank has a lid, so it couldn't have jumped out.
Why did you leave me on Christmas!
All my levels test out perfect, and I have zero predators that would eat him. I do have a serpent star, but it hasn't eaten fish that I know of and it is not the green variety.
Any ideas?