metal particles in live sand!...should i worry or not!?

HI all,my friend gave me his live sand since he stopped with the hobby....and coincidently I found that in the live sand there are very tinny metal particles! these were found cause my glass cleaner magnet fell in the bucket and when I picked it there were tiny black particles with it!.....should I remove the sand that I already put in the refugium?

thanks

 

They may not be harmfull they might be extremely harmfull no idea how to know.

 

If in doubt, get rid of it and start with fresh sand.

 

Mike has a great point

 

Those particles are not metal, but iron-containing minerals, which are a component of natural sand. It should be fine. If you're really worried, you could go about removing the grains by pouring the sand over a magnet in the tank. (Or stirring the sand with a magnet)

 

Thanks for your response ...after 3 years...still no issues so I guess nothing to worry ....Happy New Year!

 

You too

The beach sand in my area contains tons of these minerals. I could fill a water bottle with the particles if I sit at the beach for a half hour with a magnet.