These are Lumpsuckers, they're cute and grumpy. These are only babies, cos they can grow to a foot long and become... well, a LUMP. Hehe. They have attachment feelers (it does have a name, but brain cannot recall what it is right now) on their bellies, which allow them to grip rocks. The reason they are being bred in large numbers is because they are natural pesticides against sea lice; which effect fish farmers' stocks of fish (usually Salmon). The Lumpsuckers will (gently) attach themselves to the fish and eat the lice. I love these little guys, watching them chase food is so cute.













