Identification please: pond invertebrate

[Millian]

Do Eiseniella or Planaria reach two inches? When I searched before coming here, I found that most apparently likely species were much too small (generally under an inch long). Also, they don't swim in the way the one in my pond does.

[The Woodman]

Eiseniella (Oligochaeta) can reach 8cm/3"+ but I've never seen it swim as you describe. The colour is good though.

Planaria 10 - 12mm and not pink but brownish in my limited experience.

A photo might clinch it.

[Millian]

I'll take the camera out to the pond today.

I've stumbled across another thread, which looks as though it's related (and which reached no conclusion): pink 'worms' in garden pond.

[Klaas Reißmann]

Hi,

just have a look for these: Haemopis sanguisuga and Erpobdella octoculata. Maybe it is one of these species. The size would fit.

Regards
Klaas

[Ukwildlifeo]

Have you looked at Lumbriculus variegatus? Ive seen them swim like you describe and they fit the description.

[Kayleigh]

Originally Posted by Ukwildlifeo

Have you looked at Lumbriculus variegatus? Ive seen them swim like you describe and they fit the description.

These are the aquatic worms I was on about...I dont know how they swim..