Hey there man i see the flat worms has made it to the GAP.
ANy wya get FLAT WORM EXIT. from Salifert. I had them too and got rid of them.
Leopard wrasse will most of the time, beware you need to get him to eat first once in your tank.
yellow coris wrasse no problem
six line wrasse somtimes
Neon wrasse will thou.
mike