Eggers says you should mark the location with a float or a waypoint on your chart plotter when you catch a red or two from a spot because more fish are probably holding in that precise location
Can be anywhere from tiny white bait aka anchovies, sardines up to mullet and even small tuna sizes like Bonito, and skipjack - but this rule is challenged by the most aggressive pelagics such as Spanish Mackerel, Giant Trevally, Wahoo and or territorial attackers like Giant Groupers, and Coral Trout
Explosives Using explosives is not only illegal but extremely harmful to aquatic life and habitats
AI is not a feature that one tool company decided to ship
As far as fishing goes, Monster of the Deep mirrors its real-life counterpart rather faithfully (besides having to wait forever for a bite)
Grey as shown below in the gallery, Frog Spot, Red Head White Body are a couple finishes you might find.