Scooter blenny acting different

Had him like 6 months

He eats everything that goes in the tank mysis brine pellet

Recently he started swimming along the back wall up and down, he has never been a swimmer I got him very small and he has grown so could it be him getting older?

I catch him doing it in the morning no other time really

 

I wouldn't worry about it as long as it keeps eating well. It may be looking for more territory to search.

 

My mandarin will do that from time to time. Apparently fish think that the reflection they see in the glass is another fish. Like 2in10 said I wouldn't worry as long as hes still eating. Mine used to posture and make faces at himself. I recently had to blackout tint that side of the tank and have not seen him do it since.

 

the only time my scooter blenny goes on the glass is when he is attempting to eat the copepods, otherwise he is usually on the live rock or substrate.

 

Maybe he just sees his reflection then ... Such a strange little fishy