Hi, I'm helping a friend set up his first tank and I want to get some input on what I have in mind for stocking it with fish. It's a 15g column with an ok filter (came in a kit, basic Aqueon for max of 20g I believe). Currently going through the cycle process. I explained that he'll have to keep up with cleaning, regular water changes, etc. To make the most out of the space in the high tank, I was thinking to have 3 separate "levels" of fish, based on where they'd swim in the tank. Top of the tank: centerpiece fish. Was thinking a smaller sized angel or probably a guorami. Mid: school of small tetras or something similar. Was thinking 6-8 neons, cardinal tetras, glowlight tetras, black neons, danios, white cloud, etc. (I would add 3 or 4 from this group to start the live-fish bio load cycle) Bottom: 3-4 smaller cory (panda, etc.) or maybe 3 otocinclus (after the tank is cycled, more established - I know they can be sensitive to conditions. My main questions: What does everyone think of my plan above (in terms of not wasting any space in the high tank, bio load, compatibility, etc.) ? I think 2 guoramis would be too much, right? (He said he wants 2, but I don't think it's a good idea) Is an angelfish possible? I know some get bigger than others. I was at Petland today and they had "assorted angelfish" that were small, but they were young and all different types... Thanks in advance for the input!