Rocktail

The Rocktail is a fish that is found in the Living Rock Caverns. Rocktails require a Fishing level of 89 or higher to fish and give 380 experience per catch, which is the most experience obtainable from a single catch of any fish in Runescape. You need a normal fishing rod and Living minerals as bait to catch Rocktails. The Living minerals can be obtained from a living rock protectors/strikers dead remains. You need 73 mining to mine the dead body. The Living Rock Caverns, however, are quite dangerous. Players could be attacked by level 120+ monsters.

Rocktails require a Cooking level of 93 to cook and give 225 experience per fish. Players stop burning Rocktail at level 99 while wearing cooking gauntlets. Rocktail heal 23 hitpoints and can heal you up to 10 Hitpoints higher than your maximum. This makes it the best single-bite food in the game. Eating Raw rocktail using the Bunyip swallow whole scroll does not currently boost hitpoints above the maximum. The effect does not stack with Saradomin brew.