water height

What is the ideal operating waterline from the top of a rimless tank? Is 1” from top at normal operating level enough? Looking for the recommended balance of not too low for looks, but not too high for messes! My tank is 54x30x24. I am setting up my first rimless 150 gallon with a Modular...

I have a Red Sea 170, i bought the octo Essence 130 protein skimmer for my sump. The water height at the baffle in the sump is just under 7.5 inches. I added a baffle with holes to split the sump and have a refugium on one side. Is 7.5 inches a good water height for this specific skimmer? Or...