So i know for my own knowledge what else other then pests cause holes like hes gettingI see some leaf tip burn and some specs . . . I do not see any webs of the Borg.
Maybe back side of leaf pics . . . Maybe find some critters
Now that i looked at the leaf again it looks more like he needs calmag dont jump and buy some just bc i said that though
Have the leaves always been more yellow in center?
Do you have air flow on the plant?
What brand? Calmag?