How to get rid of these flatworms

[Sycoticrealm]

I recently noticed small amount of flatworms never had them before and i first noticed on my thorny sea star.

 

[Js.Aqua.Project]

I've had success in the past siphoning out all that I can see/find (I used regular airline attached to a piece of rigid airline) followed by a round of Salifert's Flatworm Exit.

 

[Sycoticrealm]

I think I've pinned them down to a harnless species only if number are kept down I've found a handful on each of my corals brushing them off seems to kill them because they're so delicate but i cut one in half and i think it multiplied any information would be helpful.
I have sucked them off corals to reduce the numbers but i can't seem get them all.
Any coral dips that can kill them for LPS corals?
I don't dip my corals but all the corals i have from this plave have some and they are isolated to just those corals

 

[Sycoticrealm]

I've had success in the past siphoning out all that I can see/find (I used regular airline attached to a piece of rigid airline) followed by a round of Salifert's Flatworm Exit.

I will look into Salifert's Flatworm Exit and suck the rest of these jerks out.