3 Spot Damselfish?

[hibye]

When I get the preadator tank started I was thinking of adding like 3-4 3 spot damselfish becuase my LFS has a tank full of them (ten gallon with maybe 15) and they put a goldfish in there and they tore it to shreds(sorry Biff)and it was really cool how they like used teamwork sorta like a (pirranha maybe)I am choosing these damselfish becuase they are the most aggresive and biggest. And my question is:is this a good idea?

 

[dustin_P74]

it could work, but you needa feed them saltwater fish, and if they arent big enough they will get eaten. no big deal

 

[Bifferwine]

They don't need live food, they will eat regular old fish food too.