can someone id these?

[coralnut99]

Acoel Flatworms are the red stinky ones that grow to plague proportions. The white ones are harmless to beneficial. They belong to the suborder Maricola. They eat microfauna like copepods. I have watched one run down and consume a copepod on my glass, but I haven't seen one since adding a six-line (for the acoel flatworms that I picked up).

Their population will crash out naturally when their food source is depleted. I wouldn't worry about them.

+1 They aren't worth trying to wipe out. The numbers never get to plague proportions. Not even close.

 

[TampaSnooker]

Any of the heliocoris wrasses should consume them - 6 or 8 line, yellow, radiant... As would a bullseye mandarin goby/dragonette. The flashers are a different genus.

 

[SushiGirl]

Acoel Flatworms are the red stinky ones that grow to plague proportions.

According to all the ID info I've found, those are called Red Planaria flatworms.

 

[MarkGP]

I have had good luck with the melanurus wrasse in a couple of tanks.

 

[Angel*Fish]

I don't care what you call them, but I don't want them to wipe out my copepods!!!

 

[cside]

Tried a 6 line once. Pistol shrimp... all gone! Sexy shrimp... all gone! Flatworms... untouched! Six line... all gone!

Hope you can figure it.

lol. i feel your pain. i hate 6 lines. if the fws dont hurt the coral, just leave them be. eventually, their population will balance out

 

[Dadekster]

They are called free food for certain fish from what I can tell Flashers won't go after them unless they learn to from what I've seen but any wrasse that picks food off the substrate will eat them for the most part. I've seen the following eat them in my tank.

Halichoeres chrysus - Yellow coris wrasse
Halichoeres claudia - Christmas wrasse
Pseudochromis moorei - Jaguar dottyback
Chrysiptera talboti -Talbot damsel
Forcipiger flavissimus - Longnose butterfly

I find it odd that the Talbot does but my Cirrhilabrus exquisitus/Exquisite wrasse does not even though it does cruise the substrate looking for things to pick at. Guess it just hasn't learned that the walls have snacks as well. My longnose is not a big fan of doing this either for some reason. I have seen him do it but its pretty infrequent, he's happier cruising the rockwork upside down and whatnot.