hey folks! my name is aj and im new to the whole aquarium/fish scene. my interest was piqued by a friend at work and i got a 3.5 gallon for my girlfriend for xmas. now that we have that one, we have to get a bigger one and SOON. were thinking about a 20 gallon or so but we really have no idea. for the time being we will start with fresh water, but definitely plan to add a salt water biocube as soon as we feel comfortable with the whole process of water changes and such. i look forward to learning a lot here!