So I dont know if you remeber.... but I had and continue to still have these in the evo.
@F i s h y had them too. (probably came from the same supplier) ANYWAYS. no amount of flatworm exit would kill them. Some would die, some would live. It was starting to take a toll on my tank with all the treatments.
@F i s h y mentioned he got rid of his once his P04 was eliminated. I have moved stuff from my evo (which maintained high p04) to my biocube (which does not) and I have never seen them pop in my biocube. I do a treatment of flatworm exit on all things I transfer in a dip but I'm sure there are probably still eggs. Its interesting to me that I have yet to get any in biocube given they are definitely some in the evo. The numbers fluctuate. At one point there were tons and I did a treatment. But lately, they are staying really low and I haven't done anything.