DYI Stand Plan, how is this idea?

[Easto]

I have a 75 Gal tank that I am building a stand for. I attached a quick picture that I did in paint, because for the life of me I can't figure out how to use sketchup.

What I was planning to do is build the stand deeper (front to back) than my tank is. I was going to sheet the top in plywood and then drill 1" holes and run my plumbing down into the sup below. This way I can have the stand tight against the back wall and most of the plumbing is hidden within the stand.

From the picture below:

- All joints will be secure with pocket holes and screws.
- The tank will set on the portion between the bottom black line and the blue line.
- The small section at the top of the picture will be behind the tank and I want to run the plumbing down through there.
- The bottom frame will be the same at the top frame.
- The frames will have lot of support via 2x4 uprights.
- The upper frame will be made of 2x6, the bottom will be 2x4
- Uprights will be 2x4

Is this all fine?