Unknown worm

[piranha1625]

Hi all, i am Dharmawan from Indonesia and i am just starting the reef tank... Now still on cycling day 17 :lol2:

My detail reef tank as follow:
Main tank: 70 (L) x 40 (W) x 45 (H) cm
Sump: 60 (L) x 37 (W) x 40 (H) cm
Skimmer: DIY with Pump Atman AT-105
WM: Aqua Syncro Waver 4000 6w-1000LPH
Return Pump: Atman AT-105
Lighting:
- MT: Aquazonic 60 cm 2x24w (Blue/White)
- Sump: Flood Light LED 10 watt
Refugium: LR + Macro Algae + Dead sand about 5 cm height
Others Equipment:
- ATO: manual drip (will also use for kalwasser drip)

My latest tank picture as below:
Main tank

Sump



This morning i found the worm swimming very fast and after going circle like crazy all over the tank then going to overflow and stuck on my foam filter. After i put on small bottle, the video as below:
http://youtu.be/kqi_wxgOGmI

Anyone can help to identify what kind of worm? This is bad or not for reef tank? I am already try googling and can't find...

Thanks in advance for the advise

Best regards

 

[Sugar Magnolia]

That's an epitoke. Part of the reproductive cycle of polychaete worms. It's harmless.

 

[piranha1625]

Thanks for your reply... Next time i will let this worm on the tank when found it again... Now the worm already dead maybe because i am put on the small bottle..

Best Regards