I have two fish tanks: a 65 gallon freshwater Amazon set up and a 72-Gal. saltwater reef tank. I kept freshwater fish from my childhood and it was relatively easy to switch to the marine aquarium keeping. I kept fish-only tanks and some invertebrate / fish combination set-ups, but settled in for the reef tank for its beauty and natural self-maintenance. Although marine aquaria attract much greater attention and definitely look brighter in your home, I still like keeping my freshwater planted tank: it is virtually maintenance-free once everything is under control and it, I guess, after having freshwater fish for my entire life it just feels wrong not to have a tank.

My current marine aquarium set-up includes the following:

Salt Water Aquarium
Fish:
In the past I also kept dwarf lionfish with some success. Lost two of them while on vacation because of their eating habits, or, should I say, training.

Inverts:
Corals:

My freshwater tank currently is stocked with:

Fresh Water Aquarium
angelfish, discus, emperor tetras, and rainbow fish (boesemani and red irian). For years I relied on plecos for algae control, but this limited my choice of live plants. I recently discovered the power of Otocinclus catfish for clearing algae without destroying sensitive plants.

Other the years I experienced a variety of problems while experimenting with different fish, inverts, and corals. I have learned the methods of slime, diatom, and hair algae control from trial and error, spending hours and bucks on research and different products. I will be glad to share my experience/compare notes with others in the hobby. As a big fan of the natural solutions to the aquarium problems I tried to stock my tank with compatible and symbiotic livestock. I agree with others in the hobby that patience is the key, but would add that research and learning from others' experience.