buying live rock

[mycat99]

this might seem like a dumb question but here goes .when buying used live rock what should someone look for to see if any copper was used in tank?i drove half way across town to look at some stuff .the person selling it said all was was new but he did not want go to salt .the stuff had nothing at all growing on it so i passed

[hound96]

kindof an at your own risk deal