I found this hitch-hiker in my tank, can someone help with an ID?
It does not seem to actively move, in the time since I found it it has remained stationary in that shape. It is slightly rubbery, flexible and feels a bit like picking up a feather worm. The "head" is a dark orangy-red circle with a darker mouth in the middle. The "tail" section (see below) will retract into the main body and come back out again, very slowly, at intervals. This critter is about 15 mm long when at the shortest, and about 30mm long when at the longest.
It does not seem to actively move, in the time since I found it it has remained stationary in that shape. It is slightly rubbery, flexible and feels a bit like picking up a feather worm. The "head" is a dark orangy-red circle with a darker mouth in the middle. The "tail" section (see below) will retract into the main body and come back out again, very slowly, at intervals. This critter is about 15 mm long when at the shortest, and about 30mm long when at the longest.
