@naterealbig
I used real aquarium silicone from ASI. They said wait 24hrs to handle and 4 days for full cure.
Those clamps are just what I need. I want to clamp to the stand or make a bracket that attaches to the stand. I also need to support my return line.
I've got the refugium pump plumbed with vinyl tubing. Need to support that under the stand.
Gonna paint the back again tomorrow.
I may add a branch line and a ball valve off my return line and use it for water changes. I need to make a hole or chase in the wall behind the tank. Planning to run a piece of 3 or 4 inch steel pipe and fire caulk it in place. Then use a rubber boot on each side of the pipe to help prevent spiders from moving between the garage and the house. It's Florida, so no avoiding them. I spray monthly outside and keep them fairly beaten back.