10" Engineer Goby in 40 gallon tank. Aggression?

[ChrisNH]

I have an relatively enormous engineer goby in my 40 gallon tank.

He didn't start big. I got it (probably a her) as a 1" "neon goby" as a bonus fish in a fish order.

I used to have a blue neon goby and a starry blenny. The blue died overnight, then a month later the starry started to swim erratically and then also died.

There was never any aggression from the engineer goby that I saw. She had her hole and other than a continuous argument with me over whether or not we should have a bare bottom tank she seemed quite mellow. I have a newer tank (8 mo) and fish can die for various reasons.. but it has been discouraging to have two die like that when I only had three fish and a shrimp.

I want to replenish the fish, one fish and a shrimp is a bit dull even in a small tank, but hesitate because of how big my goby got. Should I be worried?

I would love to get a wrasse, or another blenny, or even a couple more neon gobies. No clownfish. Cute but don't need a bitey fish in a small tank.

Thanks

 

[vetteguy53081]

I have a 13” and is super peaceful. Do remember this simple statement-
ANY FISH THAT CAN FIT IN ANOTHER FISHE’S MOUTH, sooner or LATER WILL

 

[vetteguy53081]

I have a 13” and is super peaceful. Do remember this simple statement-
ANY FISH THAT CAN FIT IN ANOTHER FISHE’S MOUTH