I really dont Quarantine anything but if you did want to Quarantine your fish the recommended amount of time to quarantine would be 4-6 weeks. Now for your corals just dip them into lugols iodine and they should be fine!
I have never ran those but i plan on running them in the future! I think you can get a octopus metal halide lighting fixture in the United States. I will look it up and get back to you!
I dont know to much about Aqua controllers but i have read alot about them and they sound like a really nice piece to get my hands on but they are really expensive!