Help! earwig on my 2 day old seedling

Well I checked on my seedlings with a small flashlight this morning and seen something on the newest seedling. upon further inspection it was an earwig eating my cotyldon. There is a little spot on it where he was munching, death came quickly for him. any suggestions? the seedlings are about 2 inches and in a humidity dome, they r in rapid rooters in a 9 hole plastic tray temp in the dark was 67 f and hunidity 95% should i loose the dome and let them dry up a bit? after 4 days there is roots emerging from all the RRs. are they redy for hydroton in my dwc? PLEASE HELP:(