A pic of some ricordia that I got on auction:dance:my ORA shroom is expanding after being moved to accomadate some new neighbors

i've noticed little, i mean very little, clear/pink flat worms on my Pink Ricordia mushrooms. they do move around and they appear to have no heads or any anatomy at all. they almost look like little flat ribons. they are not on any of my other corals just my ricordia and they are basically...

i picked up those coral frags today ....trying to figure where to place them. anyone with experience on these coral let me know please to place high or low in tank .also if they need high or low water flow.i have a 29 gallon with the stock pcs thanks in advance