I've had this nem for about 7 weeks now with no problems.
About a week ago it began to recede and the resident clown seemed to be irritating it. The two were separated for a week and the nem has recovered since, or it seems so.
Does anybody have any idea what is wrong with these tentacles?
It is only on this small section of the nem.
Water params are normal and i do 20-25% water change every week.
There haven't been any new additions to the tank.