Sorry to hear that you are going thru this ordeal.. Yes need to closely monitor for next few weeks to try rid of them. Any colonies or frags that suddenly look paler or PE reduce or suddenly showing mesenterial filaments when it is not feeding time, these signs indicate that the acro might be under attack from these vile pests.
Agree with your approach to scrap off all eggs & physically remove them instead of relying on the dip. Cannot take any risks.
natural predation with wrasses can work, more effective if feeding is reduced, so that they actively hunt for the aefw. Check out Springeri damsels too, some have reported success with them eating aefw.
will be beneficial to blow your colonies once in a while with the turkey baster, or use a small power head, this action can dislodge aefw & once they start floating around, your wrasses should grab them fast. Good way to 'train' them to eat aefw too.
sorry for this long post, hope this helps! As much as it is disheartening, don't give up bro, with perseverance & discipline, these damn aefw can be eradicated!