I have noticed a few of my chromas and my Foxface occasionally bite at the water surface. Otherwise, they seem normally active and go around and up and down with no problem. I read about low Oxygen but the corals and other fish don't do this. The tank turnover is 388 gph in a 100 gal tank. The skimmer is running 24 / 7
Any Ideas.
Thanks
Any Ideas.
Thanks