mate ive chased redclaw there many times and have found catching them during the day nearly impossible. Overnight is always good. I always stick to the trees in less than 2mtrs of water, never really fails. Just gotta try find patches of sticks away from the hundreds of other floats, thats the tough part.
Doubt moon would play much of a part, but they defintely fire up after a few solid days of rain.
Rockmelon for bait. dont bother using anything else as it always does the job