Caimie's Diadem Fishing Guide :)

[TinkyWinks]

Is there a guide to fishing in Diadem before lvl 80??

[Jojoya]

Is there a guide to fishing in Diadem before lvl 80??

There's really not all that much to Diadem fishing if you're just leveling.

The water areas are for leveling fishing while skyfishing is the level 80 content. Most fishers will congregate on the southwest island since it's got most of the water (including in the underground cave area). The Mender at the entrance sells the baits appropriate for use in the zone - buy the highest level bait your character can use, head for water and start fishing. Don't worry about what you're catching, just catch as much as you can. If you have leveled CUL to at least 30 and unlocked Desynthesis, you'll be able to desynthesize any appraised fish to get approved Skybuilder materials.

I definitely would recommend prioritizing Ocean Voyages for XP when they're available, then switching back to Diadem until it's time for the next voyage.