Like regular monkfish, players need a Fishing Level of 62 to catch fresh monkfish, but using fishing potions at level 59 is possible. An Admiral pie also works at Fishing Level 57. A spicy stew with three doses of brown spice added can be used to boost from 57, but it isn't recommended, since it has a chance of lowering Fishing level by five and the chance of boosting it is so low, you're better off using Admiral Pies.