Is there an inline fuse going back to battery from alternato on 96 geo metro?

No, there's typically not an inline fuse between the alternator and the battery on a 1996 Geo Metro (or most vehicles for that matter). The protection for the alternator's output circuit is usually handled by the internal regulator within the alternator itself and larger fuses or circuit breakers in the main power distribution system (fuse box/panel). A short circuit from the alternator would likely blow these larger fuses rather than a smaller inline fuse.