I have been reading here for the past few months, and though I would join to both learn and possibly help with what I have learned so far. I just started a 13 gallon for my kids. Currently it is medium planted, cycled, and starting to increase stock. I am using a Quietflow 20, with ceramic rings and bonded floss, and intake filter instead of the cartridges provided. Seems to be working well. The tank is currently stocked with 1 Guppy, 4 Glo Danios, 9 ( I think since they are good hiders) Neo Yellow Shrimp, and 5 Nerites. I plan to get one more Danio (have one of each color), a few more Shrimp, and 5 Glowlight Tetras. AqAdvisor seems to agree this would be a good level. Anyway, just wanted to say Hi and show what I have going on.