I.D please

[TK_KW]

So I have two I noticed in my Qt tank. One is a type of flatworm, but what type? The other I have no clue, their are dozens of them.



Thanks



#reedsquad

 

[TnFishwater98]

I pretty sure that worm is harmless. Maybe a Dorvilleidae? Definitely double check with someone else though .

 

[ISpeakForTheSeas]

I’m inclined to say Dorvilleid worm as well for the bristleworms you have there. If they’ve got four tentacles on their head, then they’re most likely Dorvilleid worms. I’m not sure what species of flatworm you have there, but, as general rule of thumb, you don’t typically want flatworms of any kind in a tank.

 

[TK_KW]

@vetteguy53081 thoughts?

 

[vetteguy53081]

So I have two I noticed in my Qt tank. One is a type of flatworm, but what type? The other I have no clue, their are dozens of them.



Thanks



#reedsquad

left - Acoel flatworm
Right- Dorvillidae worm- Reef safe and eats uneaten food and detritus.

On flatworm, while they are not harmful as red planaria, they in numbers can smother bases of coral and block the needed light for production of zooxanthellae which is their energy source.
Removal can be accomplished by siphoning them with a 3/8" tubing into a nylon stocking and discard
OR
Add a wrasse such as Yellow coris, 6 line, lunare or malanurus OR even a springieri damsel which will eat them

With the number you have, for the next 2 weeks you will have to look for eggs and scrape off as there is likely some and would be future acoels. Eggs are really tiny