Thank you, I'm really happy and excited that I got it running. It's extremely quiet bearly a whisper from the overflow, and all the wiring and plumbing is clean looking. Now I'll grow out all the corals.
That hole in the overflow box is for the Elos fan kit to keep the Elos aquatop cool and free of condensation.. The Elos systems can be hard plumbed , I've done it many times..