Well, for whatever this is worth, my next tank project will be a 120 gallon well-planted community tank full of small, peaceful, colorful fish. 25 lemon tetras, 25 neon tetras, 7 female and 2 male guppies, 13 otocinculus, and 19 pygmy Cory cats. The school sizes can change and I could add different types of fish in smaller schools. I could even add 2 dwarf gouramis into that mix really easily for a couple of larger (relatively to the rest of the fish) display-type fish. I like the 120 because it is only 4 feet long, so it would look packed with that many fish, plus, it has 2 feet of width, so I could really differentiate the fore, mid and backgrounds for plants and make a really cool aquascape, I think. It'll be a long time before I can even afford any of it, so I have lots of time to change my mind and mix it up.