Just curious as to other peoples set up on their tanks with no sumps? Im new to this hobby, bought a used set up and unfortunately I cant drill my tank. The set up is a 72 gallon bowfront, Fluval 406, Remora Pro S skimmer, 2 power heads w/a a chit load of live rock

Things are very stable, only problem is my Nitrates hang around 10 all the time. I do 10% water changes and weekly clean out my Fluval. For now this is what Im gonna work with.
Cheers!!