Here is the full list of all 36 MONSTER OF THE DEEP: FINAL FANTASY XV trophies - there are 21 bronze, 10 silver, 4 gold and 1 platinum.
Collected all trophies.
Caught the bythos.
Caught all fish at Neeglyss Pond.
Caught one of every fish.
Caught all fish at the Caem Shore.
Caught all fish at Rachsia Bridge.
Caught all fish at the Vesperpool.
Caught all fish at the Forgotten Pool.
Caught all fish at Crestholm Reservoir.
Reached Hunter Rank 10.
Collected all rods.
Collected all tackle.
Caught 255 fish.
Hooked an unidentified species.
Collected all lures.
Caught the krypse.
Reached Hunter Rank 5.
Collected all reels.
Caught 100 fish.
Caught the isonade.
Caught the vrorogo.
Caught the deinosaulma.
Caught 50 fish.
Spent 10,000 gil on tackle.
Lost your first whopper.
Hooked some garbage.
Participated in your first tournament.
Caught the lattomaratos.
Bought your first tackle.
Completed your first hunt.
Decorated your cabin for the first time.
Caught the ypodochth.
Completed the prologue.
Caught a whopper.
Caught your first fish.
Performed your first excellent cast.