How safe is flatworm exit?

[Bustyraker]

Just sold a bunch of frags to a local reefer and he found some flatworms on them. I haven't noticed any bothering any corals in my tank but would really like to take care of them before things get out of hand. I would like to get a wrasse but I'm bare bottom.

 

[LPSGUY]

I've used it in the past on 200 gallons. I have to say it worked great. I had a medium stocked mixed reef. I followed the instructions and also did a massive water change after a couple of hours. No harm to anything in my tank.

 

[LPSGUY]

I'm sorry at that time it was about 150 gallons....

 

[Small triggers]

I just did 2 treatments for zoa eats nudibranchs with FWE...at higher than the flatworm treatment which is 3 drops per 5 gallons and the nudi treatment is 1 drop per gallon...
I have mainly LPS and zoas and mushrooms and was fine...did the first treatment ...waited 7 days did 2nd treatment then waited 5 days and did a water change...
150g reef tank...

 

[Bustyraker]

Hmmmm. I've been looking around in areas that I have low flow and I have a TON of them. They don't seem to be doing much harm but I would still like to take care of them. My only issue is that I can only make about 45 gallons of saltwater. Altogether I have around 160 gallon system so I would be no where near a 50 percent water change. I'm not so much worried about the treatment itself but more so the die off from all of these flatworms.