Black spots on my fish?

New pond fish dying, got black spots & disorientated...?

• Bought 30 new small goldfish & koi the other day. Put in pond with 4 other fish. Since then 3 have died, two appeared to have loads of tiny black spots on surface of skin, they appear disorientated and swim at an angle at surface of water.... can't seem to find out what's wrong with them... Any thoughts greatly appreciated! Thanks

• Answer:

  there might be something in the pond water because if it has something toxic or harmful then get the fish out asap. swim bladder problems normally have it swimming more upside down but my fish had a swim bladder problem but it fixed it self after about 3 months but he still swam right side up but he couldn't fight currents from the filters though it was fun to watch him swim around in circles around where his little hiding spot was he basically patrolled the area so nobody would "Break In"