What type of flatworm

[Llg]

So, I treated the tank for black bugs and now two weeks later, I have flatworms exploding all over the tank. Corals keep taking a hit. Can someone id these for me and let me know the best course of action?

Thanks

 

[nezw0001]

Looks like red planaria to me

 

[Llg]

Thanks. There are a bunch of these and then there was an acropora flatworm elsewhere in the tank