Lawnmower Blenny Acting Strange

[Kiel'thalin]

My Lawnmower Blenny is acting kinda strange lately. My Live rock is against the back glass and he will perch across the back rocks and see himself in the reflection. Actually this has become a every 5 minute thing. He will constantly swim back and forth really fast and agressive against the back glass over and over again. This has been going on for the last 4 days. I have had him 2 weeks now. When I 1st turn on the light he is usually a light color and immediately he turns a very, very dark shade when he gets against that back glass. I think it is because he sees his reflection? Any resolution beside removing the rocks from the back glass?

 

[hgbarwick]

Yes I think he is acting territorial becasue he thinks he sees another Lawnmower Blenny. You could add a black background to the back wall of the tank. Then he will not see his reflection.

 

[Kiel'thalin]

The black background is what I have, I think I might get it closer to the glass since it is taped to the rim and not the glass.

 

[hgbarwick]

Yeah try that.