Leather Cabbage with Flat worms

[Sencha]

This Sunday I bought a brain coral from one LFS and a cabbage leather from different LFS. While I had them acclimatizing in separate make shift “In-Tank Refugiums” , I noticed the cabbage leather had flat worms. I have treated the cabbage leather with coral x, but realize I will not be able to put in dp tank for a minimum of six weeks. Will I be able to keep the coral in this for that long or do I need to set up an emergency quarantine tank? I have a sponge soaking in the sump area to get ready for quarantine tank.