Rocktail
Rocktail is a type of fish that can be found in the Living Rock Caverns and the Deep Sea Fishing Hub. The Living Rock Caverns are located underneath the Dwarven Mine, which is located under Falador and extends to Ice Mountain. Players need level 90 Fishing to catch rocktail and level 93 Cooking to cook them.
Cooking=
Raw rocktail can be cooked starting at level 93. They give 225 Cooking base experience per fish, yielding roughly 315,000 base experience per hour.
Raw rocktails stop burning only if wearing cooking gauntlets at level 94 or using the Cooking cape perk.
Without cooking gauntlets, rocktail burn at high rates, even with a Cooking level boosted to 103 using a Chef's delight.
Healing
Rocktail heal up to 23 health, depending on the player's Hitpoints level; the optimum healing for rocktail starts at level 92. They can also boost a player's life points by 10% above the maximum. ¨