Mounting PFO Fixtures

[Jaws]

I'm mounting my double ended PFO fixtures on my 90G today and because of the size of the fixture and the limited room I have to work with from the back of the tank to the front, I think I have to mount them left to right, rather than front to back, in order to mount the actinic lighting as well.

Mounted this way:

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The solid lines represent the canopy and the dotted lines represent the lighting fixture.

Will this effect anything or should this still be sufficient?