Midas blenny with another blenny?

I have a midas with a lawnmower in a 45gallon. The midas will sometimes go after the lawnmower but the lawnmower just shrugs him off and continues to eat.
 
Had a Midas, Starry, and Tailspot in a 240 for quite a while with no trouble at all.

I have exactly the same mix in a 200 and the midas can be slightly aggressive but only as far as chasing the tailspot. He does the same for the Starry but it simply ignores it.
 
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