How long should I QT LPS

[Fishbone]

I'm plumbing in an LPS tank to my existing SPS system. I have a very rigourous QT process for any new SPS I add to the system (3 months). How long do I need to QT my new LPS in order to insure that an AEFW or red bugs don't make it into the SPS system through the common sump. I know it is unlikely AEFW and eggs would be on an LPS but I dont want to take any chances