He's being a smart a#s. Sometimes the pictures don't load right from OS. You could grow it in the first camber but would have issue with cheato getting in you skimmer, plus the light would grow algea in all cambers. What I did Is removed the skimmer in favor of a HOB, and grow cheato in the sump now. Full of pods, PH rock steady at night, and the combo of the skimmer and cheato I have had 0 phosphates and nitrates for three years now, been having to add both.