I'll try to get some pics of the wall tomorrow, lights are out now. It looks great. The only color change I can see is from algae and diatoms (that I will never need to clean, yay!).
The seagrasses are growing. Still not very pretty yet though. Diatoms, cyanobacteria, and algae are all making an appearance. Water's kinda cloudy too, so I'm guessing it's a bacterial bloom. I'm at 3 weeks, so I'm somewhere near the worst part of the nitrogen cycle.
I would definitely be jealous, if I hadn't added two temporary fish myself today - one Black Molly and one Silver Molly. I'm hoping they'll help my snails catch up with algae growth. Afterwards, I'll keep them in the quarantine tank.
Pistol shrimp? I had one. It was tiny - no way it could hurt a fish. Did you mean Mantis Shrimp?