let us know if attempting anode replacement somehow has side effect
within 6 months requiring new tank. .........

I think its best to leave water heaters alone till they die, they
arent that costly to buy to start with looked at as yearly cost per
tank and every new tank sees improved efficency over my old one.

but good luck on the anode relacement.

start job in early morning, shop for new heater in advance, and have
fun