So an intro, not too different from others I imagine...was into fish and did the typical beginner thing of freshwater first and increased size and complexity until I topped out there with a 6 ft planted breeding discus tanks. Still one of my favorite tanks. I started into salt water tanks with a running 70 gal used tank in 1999. I literally picked up the water, rock, tank and fish. Great price too of $200. I did not know what I had with being so new to saltwater. What I lucked into was a mature tank with lots of copapods, a fat and happy mandarin fish with well balanced fish population. Instant success and fell in love with the saltwater aspect of the hobby. I did move that tank and inhabitants 2 states away and lost no one. There I started into soft corals and inverts. At the max, I had 4 tanks with different aspects of the hobby. Reef tank, aggressive fish, eel tank and a smaller coral tank for QT/observation. About 10 years ago, I had a catastrophic tank loss of all my tanks over a few days except the dragon eel which took my 3 months to get to eating regularly again. Don't entirely know what happened but it's narrowed down to the water (?salt mixture) or the food (frozen meaty food) cause that is all that is common between the tanks. Reading on this and other forums about salt issues makes me favor that though. At the same time the LFS lost his shark tank of 20 years and I bought my salt there. All guesses though. At same time, I was getting ill and that made everything happening with my tanks harder to manage and harder to recover from the heartbreak of losing fish that had been with me for a long time. It hit my kids hard too. I dismantled everything, re-homed the eel and left the hobby. Spent the next decade fighting illness and am finally recovered and learning to live again. As I have gotten stronger....my attention turned to fish. Somewhat nervous and also excited to start again. It does feel in some way all new after so much that has gone on in my life and the hobby seems both different and the same from the outside.