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The picture is not very clear but if he has lost the spines and have not moved in days, then yes. Sorry.
pick it up and sniff you'll knowWait he’s losing his spines but the spines that are left are moving is that normal
He just smells like sea waterpick it up and sniff you'll know
Losing spines is a sign of failing health in urchins - does it have enough food to eat in the tank? How are your parameters (specifically)? Have they been swinging at all?Wait he’s losing his spines but the spines that are left are moving is that normal
My parameters are not really swinging but my nitrates have gone really low but he stayed in the same spot for a couple days and he was upside down and spines falling off so I think he’s deadLosing spines is a sign of failing health in urchins - does it have enough food to eat in the tank? How are your parameters (specifically)? Have they been swinging at all?