Here is a 150 gal I built. I did all the woodwork and used a pre-drilled oceanic 150 tank.
My father inlaw gave me 6 sheets of 3/8 inch acrylic so I made some filters with it too.
I really dont know if they are working or not yet. I used to have a tank 6 years ago it was a 100 gal, that I had to sell off due to a move. I am basically new to this, and finding out what I am doing wrong here
I have a refugium and skimmer that I made but so far all I am getting from the skimmer is water. If you want to see them I will post pics.