Flatworms... ewwww....

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Originally Posted by justinl

if you do the recommended dosage, you wont kill a single flatworm.

That is certainly not my experience. Recommended dosage certainly killed a lot of them in my case. I was impressed that it really seems very targeted. I saw one Eunicid worm in distress, and I'm a bit worried about some starfish...other than that, there seems to be no side effects to the treatment.

I'm waiting another week to see if I can see any alive. Robw's experience is very concerning. I don't want to transfer any into the new tank.

The idea is to preserve life on/in the rocks while eliminating the flatworms. Aggressive treatment of the live rock is not an option.