Well Tank Advise

I am looking for advise on a new well tank. I discovered a couple days ago that mine has a small leak in the tank at the bottom. It is a 30yr old galvanized tank. I need to fix it soon before the old one ruptures. I am not sure if this one has a bladder in it or not since it does have a valve on top like a bladder one would. I do not know if The galvanized ones came with bladders 30 years ago. Should I just replace with the same, or change to a bladder style one if it does not have one? The pressurized bladder ones seem to be the way to go. I assume I will need to make small changes to the way I plumb it. I have not researched it at all yet and figured I would reach out here for any advise.


Thanks