Hi all. I recently joined WAMAS and am trying to setup this 75 gallon reef tank. I purchased this Fiji Cube AIO kit to silicone to my tank, as I like the look of it and do not want to drill for a sump. The gap between the AIO kit and my glass side panel was too large, so I purchased a 3/8" acrylic panel to fill the gap [second photo]. Unfortunately, there is still a gap, and I'm not sure that another panel will fix this issue. I'm struggling with this and ready to give up; I'm not much of a DIY person, so I would appreciate any help you can provide, whether here or in-person. I'm located in 20037.
Thank you!