I'm taking plenty of time to do research & want to start a FW aquarium right after the Holidays. I'm looking for a 15-18G (maybe 20G) due to lack of space Just want some advice on the best but reasonably priced tank to use. Do I want one with the filter in the hood or a hanging filter?...I'd like to incorporate live plants so I'm not sure of the substrate to use and what kinds of light. I'm gonna use low light and easy plants as I'm just a beginner. Thought about plastic plants but would love real ones.....I'm a newbie so any and all comments would be appreciated. Can't wait to get going and past the cycling part