You will often see players calling out recommended baits. Certain baits are only required for Intuition fish and a specific subset of Spectral Current fish. The recommended baits are just what the target fish like the best, thus triggering them to bite faster.
Three special baits are used for ocean fishing, which can be bought from the Merchant & Mender at the dock and on-board the Endeavor:
Ragworm
Plump Worm
Krill
Most fish will also respond to Versatile Lures if you happen to not have the above.
You’ll also need to have the following on hand for specific Spectral Current intuition fish:
Pill Bug, LV 5
Rat Tail, LV 15
Shrimp Cage Feeder, LV 25
Glowworm, LV 45
These are obtainable from any Fieldcraft merchant or player housing junkmonger. If you’re in a hurry, just go to Syneyhil in Limsa Lominsa — West Hawkers’ Alley.
And also these:
Stonefly Nymph, LV 51, obtainable from:
Squid Strip, LV 80
Heavy Steel Jig, LV 37 — This one can be crafted by a LV 40 Goldsmith, or given as a reward for the following Levequests at the Observatorium in Coerthas Central Highlands: