Flatworms

[Madreefer]

So what are you saying?

That you've used Salifert Flatworm Exit but didn't follow instructions?

I'd start dipping your corals or any frags you get from now on, your either getting them from your frag source or as you said not following the instructions. You shouldn't have to dose several times as stated.
Good luck and hope you beat the battle.
I use Coral RX but as always you can't get in town.

[Dearth]

Not saying that at all just informing newer people to the hobby about flatworms and the potential positives and negatives of natural and chemical means and what the common flatworm can have the potential to do.

[badAZZlars]

I dosed flatworm exit recently and ran into some issues. The product works amazing at killing the flatworms very quickly but I had A LOT of flatworms in my tank. I tried to syphon as many as possible before dosing the tank and tried to net them out of the water column when they started dying but the amount of toxins were just too much for my tank.

I followed instructions with the carbon and the water changes but I still ended up losing 4 fish and most of my sps (luckily I didn't have much). My LPS and softies made it through but one of my brain corals lost all of its color.

Even with the losses I would use it again. I just wouldn't let the flatworms get to plague status before using it. It's been a couple of weeks and I haven't seen any yet so I'm hoping they are gone. But if I see even a single worm in the future I will be dosing the tank again.