I wouldn't worry too much about that, tantalums like to shortcircuit when getting old, simply replace them and forget for another 10-15 years.
Tantalums have no acid in them so they won't leak or dry out, and have very high capacitance for their size.
If physically fitting, normal electrolytics will probably work just fine here, they rarely fail this way.
Might eventually dry out, though this will take decades unless exposed to heat 24/7.
Just use high quality ones, so you have some reliability against leaking or other failures, Panasonic makes great caps.