Tank - Full Summary

I have a 150 Gallon Reef tank with what I think is old tank syndrome. This tank has been up and running for 10 years with the same sand bed with a plenum. Now I learned at MACNA that there is no such thing as old tank syndrome but instead it is old lazy aquarist syndrome. (according to Joe Yaiullo) Either way I had to do something and a tear-down was what I decided.I was curious to find out what things looked like under the plenum.

So I took a few days of work so that I could get ...