Super Flatworms! Very Discouraged, Please Help.

[AudiSteve]

I've been reef keeping for a while now and have had many battles with many unwanted creatures. In most cases I have been victorious in battle but now it seems I may have lost the war with a particularly robust and drug resistant flatworm. These flatworms are of the photosynthetic variety. Right now I have a 20 gallon long tank that I have over the course of two months dosed an entire bottle of flatworm exit! Every time I dosed my tank I would watch 99% of the flatworms curl up and die. But now it seems that the flatworm exit no longer works! I've bought new bottles of Flatworm Exit thinking maybe I received a diluted batch but nothing seems to work. I've even gone to the trouble to dose the flatworms with a pipette at point-blank-range and nothing happens. I've thought about natural control like flatworm eating fish or nudibranchs, but I have a refugium that is attached and is not fish or nudibranch friendly (Lots of pumps in narrow spaces). HELP!
My questions are:
1. Is there anything else I can do?
2. Should I scrap the tank and start over?
3. If I do scrap the tank, do I have to kill all of my clams and other hard shell critters for fear of seeding someone else's/a retailers tank with these super flatworms?
Thanks.

 

[weaselslucks]

try Blue life USA flatworm control. it worked for me

 

[backyardspecial]

Look into a product called CoralRX. Go to google and search it. I know it's used as a dip for corals prior to introduction into your display system but maybe you can dose it directly into the tank. I plan on using this product in the near future when I start introducing corals to my system again.

It's worth taking a look at.....