What kind of fish you got?
Golden mollies, guppies, neon innesa, Puntius titteya and Xiphophorus hellerii - together with a bunch of Corydoras Sterbai to clean the tank. :) Nothing too fancy, they're all pretty standard fish, suitable for a beginner like me. But I had a professional setting the tank up for me, putting in all the plants, rocks, wood, installing the external filter and nice lighting (with various special effects, storms and thunders etc.).
It's great fun :) It all started with my son wanting a fish-tank, so I got him a smaller one. Now we have five tanks altogether - the big one, the smaller one and three shrimp sets for shrimps and fry, including a big one that my daughter is responsible for, with blue velvet shrimps and Carinotetraodon travancoricus. I am like this guy who bought a toy train set for his kids. :D
The wife, kids, and I have been talking about getting a fish tank.
A brilliant idea, but I warn you: this stuff is seriosuly addictive.