You should get as much live rock as you can afford, assuming it's good stuff. Good live rock will have lots of things growing on it- algae, sponges, seaweed, maybe even corals. It'll be a bunch of different colors.
Live rock is some of the best stuff you can get for your tank. Don't skimp on it. Get at least a couple pounds, but preferably more. If you want to use dry rock, a 1/1 ratio of live to dry is decent.
Once you add live rock, no need for biospira. Test for ammonia. You may see it from die-off on the rock. If you can add a bit of food, and you later see no ammonia, no nitrites, and some nitrates, your tank is cycled. It can happen within days, with good rock, or instantly if the rock is already cycled.
Once your tank is cycled, you can add some snails for cleanup crew. I advise adding snails and waiting a week, then getting fish, but you can add fish immediately once the tank is cycled and usually be fine.
Black ice clownfish are a color morph of ocellaris clowns, which are great beginner fish.