Inside the stand.Inside the IM stand or the 8020 cage?
12" cage leaves 9" clearance. Each 15 series is 1.5".
The cage mounts to the channel in the stand and does not affect the inside of the stand if thats what you meant.
My 170 the cage sits on the floor.
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The IM100 is listed as 42" inner for the cabinet, I am trying to think if I created a raised floor inside frame if that would get me the extra 2 inches to house a 44inch sump.
This is someones build with the 3418, Id want to raise the inner part where the sump sits so that it now sits on the frame inside the tank to give me that last 2 inches
