Silk plant question, sort of hardware

[earhtmother]

Received some mid range priced silk plants with a used aquarium I recently purchased and it looks like they may have been left sitting in the undrained aquarium for awhile as they have a definite green tinge to them. Usually I would just rinse and reuse but I am wondering if I need to do anything extra to these ones

 

[SaraB]

Maybe soak in some hot water to try to get some of the green off

 

[Autumnsky]

Maybe some vinegar and baking soda volcano fun, then us a soft brush to scrub.

Bleach might damage the color.

Oh - a container of hydrogen peroxide. I got a nasty green black SW rock sparkly "white" again!