This is silly. First off, you WILL NOT BE ABLE TO REGULATE THE SIZE OF ANY ESOX BY RESTRICTING FEEDS. You might be able to control it a smidgen but either you'll have a sickly esox or a large healthy one. Some fish do tend to "grow into tanks" but controlling a beast like this isn't reasonable.
I'm not the PETA type but why on earth would you get into a hobby where malnourishment is part of your intended care practice?
I'm not the PETA type but why on earth would you get into a hobby where malnourishment is part of your intended care practice?