Monkfish

Monkfish is a members-only item on the OSRS Grand Exchange in the food category.

In-game examine text: "A tasty fish."

It has a Grand Exchange buy limit of 13,000 every four hours, a high alchemy value of 138 gp, and item ID 7946.

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Monkfish currently has a flip margin of −8 gp, which isn't profitable to flip right now despite 986,099 trades over the last 24 hours.

Items with negative or zero margins like this are better watched than actively flipped until the spread widens.