Okay, I 99% sure its from the Batrachoididae family (toadfishes)
Description:
Small to medium-sized fishes (to 57 cm).
You can see the head broad and flattened, and it has barbels and/or fleshy flaps off the bottom of the head and above the eyes; eyes on top of head, dorsally-directed; mouth wide. Gill openings restricted to sides, just in front of pectoral fin base.
You can see the two dorsal fins in your photos, the first consisting of 2 or 3 strong, sharp spines; the second consisting of a large number of soft rays; pelvic fins jugular, inserted well in advance of pectoral fins, with 1 spine and 2 or 3 soft rays. One to several lateral lines on head and body. Body naked or covered with small, cycloid scales. Color: mostly drab brown with spots or saddles of black, although at least one coral reef species, Sanopus splendidus, is brightly coloured.
They are bottom dwellers feeding on invertebrates and fishes. They are rather sluggish in their movements and are ambush predators, feeding mainly on molluscs and crustaceans. They may bite when handled.
There is a subfamily that is venomous, so again handle with care and don't get spiked by a spine.