Flat worm exit not working.

Bfragale · Mar 15, 2021

I found these grey-ish flat worms in my display refugium. I dosed the proper amount to treat the total water volume. Noticed many fall off the glass And appear to die. But within a few days I see more then before.

I turned off fuge and treated double dose- same results.

the third treatment I did 4 times recommended dose. Still seeing the population of flat worms grow.

I don’t see any in main display- (maybe six line is eating?)

is there any other reef safe treatment for these?

Bfragale · Mar 15, 2021

Anyone ever had flat worm exit not work? Could I have a bad batch? Are some flat worms resistant to it?

I have no idea what to try next lol.

Shirak · Mar 15, 2021

The six line is probably keeping them at bay in the DT. Do the ones that are visible appear to be dying? Could be that the ones you see later are coming out from where ever they are hiding and avoiding the treatment? I had those whitish ones and it took a number of treatments over several weeks. I did dose heavy than directed also lol. When I did use it though I could see the ones on the glass stop moving and fall off.

Bfragale · Mar 15, 2021

Some
Of the ones visible appear to die during treatment. But some don’t seem affected. I’ve even been trying to squish the ones I see on the glass. I did treatment last Sunday and again Friday. By the end of the day Friday I couldn’t see any except a few I squished. Today looks like I didn’t do anything.

Bfragale · Mar 15, 2021

maybe I need a six line for refugium lol. Not sure the water volume but I’m guessing around 10 Gal? Probably too small for six line...

Shirak · Mar 15, 2021

I don't think they repopulate that fast so still leads me to believe the treatment isn't working for some reason or they are just avoiding it somehow? I have never heard of resistant flatworms. You could try Flatworm Rx