It was determined through your help flatworms !!

I posted on the algae forum about what I was hoping was orange coraline. Of course, my luck, It has been confirmed... Flatworms. I looked closer and they match the pictures I found. I aimed powerheads at them and pushed a lot of them to the overflow pipe. Some still remain on the live rock. What is the best way to get rid of them? I read about flatworm exit, but it sounds like there is a risk of them dying and having a tank crash. Is it better to just blow them off the rocks and hope they make it to the filter pipe so they wont die?

 

alot of things eat flatworms, here's a few: a 6 line wrasse does the job nicely. a purple velvet nudibranch (i think that's what their called) workz too. spotted mandarins, yellow wrasse, leopard wrasse, golden-headed sleeper gobies will eat only rust-colored ones, nardoa starfish and thais snails. Also, the flatworm eXit may help, but you have to remove them manually, as long as you have the time and some activated carbon, it's all good to use that stuff. just make sure you get all the dead flatworms

 

As long as you don't have the worms in plague proportions, you should be perfectly ok using the Flatworm Exit. Make sure you siphon as many of the worms out as you can before treating and have make up water and carbon ready for after the treatment. Adding animals that are reputed to eat them is touch and go so why load your tank up with fish that you didn't want in the first place and may not want later on once the worms are gone. The nudibranchs that eat them will starve once they eat all of the flatworms so unless you want a dead nudibranch in your tank, I would avoid going that route as well.

 

FWIW, a week ago, I treated my frag tank for flatworms, but used PraziPro that I have on hand for my seahorses.
I lowered the water level to 30g and used 1 1/2 teaspoons of the PP, and the following day I added another teaspoon.
On Day 5 I did a 50% water change, but noticed that the hair algae that had been present on the tank walls for years, had mysteriously died off.
At this time there is no sign of flatworms, but I intend to do one more treatment and then wait a month or so.
No apparent damage to any of the corals or frags in the tank. No problem with the resident scopus tang, but one of the two serpent star fish has lost it's legs. Don't know if related to the dosing or something separate.