What are these???

[FISHYLove]

 

[Lionfish Lair]

You're going to have to try again with the pictures, Fishy. They're not showing up.

 

[FISHYLove]

 

[FISHYLove]

 

[Lionfish Lair]

OH MY WORD!!!

That's a Convolutriloba species of flatworm and you have ALOT of them. You're probably going to have to chemically treat that. What fish do you have in there. How big is your tank? What do you feed and how old is your tank?

 

[FISHYLove]

It's a 90g about 11 months old. Right now I only have a yellow tang and a social wrasse.

 

[Lionfish Lair]

Do social wrasses eat flatworms? If not, would they get along with a wrasse that does? I would try to manually remove some of those with a baster (doesn't work super great) or with a rigid tubing and airline, because you're going to have to remove some even if you decide to treat with medications. They release toxins when they die.

 

[saltyfilmfolks]

Oh my!
@twilliard

And we were just talking about these.
https://www.reef2reef.com/threads/red-bugs-on-glass.260751/#post-3098287

 

[twilliard]

Hit the tank with a good dose of h2o2 (amount will vary depending on reaction)
As they are getting unhappy, you will see this, blow them off with a power head and use mechanical filtration to pick them up.

 

[Lionfish Lair]

Suck some out first and have some water ready going in the wings for a water change.

 

[Tahoe61]

I would try to manually remove some of those with a baster (doesn't work super great) or with a rigid tubing and airline, because you're going to have to remove some even if you decide to treat with medications. They release toxins when they die.

^^^ Yup, that is quit the infestation. You need to start siphoning them out before you treat with a product.

 

[4FordFamily]

Melanarus wrasse or yellow coris wrasse will assist you!

 

[Clownaround]

I know some types of pipefish, wrasses, and yellow damsels may pick at them. I just use airline hose and suck out as much as possible and then I dose with flatworm exit. Be ready to due a water change afterwards a population that high will definitely spike nitrates and ammonia.