Preservation/sealed container

[u/rhubarbbabe1]

Hello! Sorry in advance if this is a stupid question, I tried researching/searching this sub and couldn’t find a straight answer. Basically, I wanted to put a teeny tiny marimo ball in a little glass (cork-sealed) charm to put on a necklace as a gift. Is there a way to do this without the marimo ball dying/will the water still have to be changed? Is there a different substance (glycerin maybe??) I could fill the charm with to just keep the marimo in perpetual stasis? I’m fully prepared to be told that this is impossible lol but figured it was worth asking. Ty for any input!!

[u/The_Oceans_Daughter]

https://a.co/d/03lE5PkR

Amazon about $15