ocean water in reef tanks?

[Raven34]

People live on the coast do it all the time, even if there is some toxins in the water it would be .000001 parts per million. LA fish guy on Youtube does all his water changes from the ocean.

[lastlight]

If you search for "natural seawater" on RC you'll have more reading than you can handle. Seems to be many doing it with good results but many concerns are voiced over the source, pollutants and the consistency of the water over time.