I'm running an MP-40 on the back of my Concepts tank with no issue. I also have an acrylic background and the tank is 3/8" glass. I'm not using the spacer, only the sticky rubber pad. How are you trying to run it?
Anyways, looks awesome. I like the Profilux touch mounted on the wall. I'm still amazed a single Mitras covers a tank that size.
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