[Tine]

Our tank is doing very well, a couple of days after the raw shrimp was added, we had a spike in ammonia, now it is returned to zero. We will not be adding the cuc until we get back from holidays at the end of May.
However we have a strange hitch hiker, it finally came out of the hole it was hiding this morning, it appears to be a brown worm (slug) about an inch plus long, 1/4 wide, when it was hiding it would extend branched tentacles.
Can someone give me an idea what it is, please? Tried to get a photo but by the time I got my camera it was gone!