i had been AEFW free for nealy two years...... until this morning.
i found eggs on the bottom of two large colonies and on a third colony, one large (1/4") worm. i took all three of them out and dipped them, but found no other flat worms i thought my fluke tabs may be too old, so i even took a large chunk of one of the colonies with eggs and put it in tap water - no flatworms came off
i will not be tearing the tank down to dip and quaranteen like i did the first time. instead, i will get some AEFW hunting wrasses to keep them under control.