That's what makes this place so great. Thanks for sharing your story.
Le me share my 10 rules that I've put together over the years here:
Rule # 1. Nothing Good ever happens Fast in a salt water aquarium
Rule # 2. Don't add anything (supplements/chemicals/minerals)you don't test for first.
Rule # 3. PWC
(Partial Water Changes) are your friend, and cure many ills.
Rule # 4. QT EVERYTHING before adding it to your tank (mandarins excepted, corals should be dipped)
Rule # 5. Use only RO
water (either buy it or make it)
Rule # 6. All animal species live longer on a 30% reduced caloric intake. Only feed every other day at most (fish species dependant)
Rule # 7. Hyposalinity is the best, safest, and most effective treatment for marine Ich (IMHO
Rule # 8. A Refractometer is a MUST HAVE, not a luxury.
Rule # 9. Anemones will never live anywhere near their normal (aprox 30 years) lifespan in a home aquarium. Leave them in the ocean.
Rule # 10. The tank size recommendations for fish are there for a reason - HEED THEM!
Good luck and happy reefing!