The previously pointed-out mounted issue is still there, dismount before you feed him. However I must warn you, if you're Alliance and on a PvP server, there's virtually no chance you're going to be able to farm these turtles, as they're right next to the Horde town. It takes a second or two after you start moving before he appears, so don't be hasty and hit his button if you don't see him right away, because it will despawn him instead and you will lose the current timer/hungry status. If you're a Skinner and you also want to farm some Golden Pearls - there is no better place for you than in the Hinterlands. He seems to respawn automatically if you hearth or take a regular portal.

You will have to re-summon him if you use your flying mount, take a taxi, or use the Dalaran crystal port to the zone below.

Even if you only have 1 of the fish you're feeding him, that slot doesn't seem to get freed up until after the game tries to create the reward, so you won't get anything. Make sure you have an extra space in your inventory before you feed him. It takes exactly 5 minutes for Pebble to get hungry, regardless of whether it's a fresh summon or after the happy effect has worn off, so it's definitely faster to re-summon him. Comment by d3l1r1umSome observations from having worked on this over the last couple of days.

Farm golden pearl wotlk