[smokinreefer]

i'd like to believe the biggest problem it would cause is an increase in algae growth, the Fe being a fertilizer.

but knowing it was sitting in there for so long, i'd probably run some polyfilter along with your regular maintenance for a while.

interesting this topic came up...
i just "lost" a razor blade in my 180 the other day.

that being said i'm going to go out and get a telescoping magnet to probe the tank.

maybe it should be a new must have tool for the reefer!