I got a yellow watchman goby yesterday and almost immediately he found a place under a rock to burrow with just his face poking out so I assumed I wouldn’t spot him often.
Today however he has spent nearly all the time at the top of one side of tank apart from the odd break on the sand but then goes back to the top. I’ve seen him eat a couple of flakes of food but still very skittish behaviour.
Is it just new tank behaviour or supine I be concerned?. I have a plastic cover with any holes covered so it would be difficult for him to escape. My new pin cushion sea urchin also likes the same spot under the rock so I wonder if that’s bothered him?.

Today however he has spent nearly all the time at the top of one side of tank apart from the odd break on the sand but then goes back to the top. I’ve seen him eat a couple of flakes of food but still very skittish behaviour.
Is it just new tank behaviour or supine I be concerned?. I have a plastic cover with any holes covered so it would be difficult for him to escape. My new pin cushion sea urchin also likes the same spot under the rock so I wonder if that’s bothered him?.



