I have a reefer 900XL - it has a separate yet connected sump which I’m using as a frag tank. I just noticed some flatworms show up on a few frags. Haven’t seen any in my DT yet. I do have a six line in the DT so he would presumably help that? Anyway, don’t know if these are one of the bad guys or not. ID? Should I add a six line to the frag tank? Medicate system? Appreciate any help.


