Lawnmower Blenny and Bicolor Blenny

[Coastal10]

Have you had success with Bicolor and lawnmower blennies living in same tank. 450litre tank

 

[Zionas]

There might be competition for food and territory as they’re both algae grazers though the Bicolor’s more of an omnivore compared to the Lawnmower that’s a hardcore grazer. I can’t say for sure but assuming a 450L (120 gallons) is a 4-foot tank, maybe with enough rocks and hiding spaces it could work out if they’re added together.