I went with these fish because I like them, they're fun to watch. I have the goldfish in there cuz my buddy gave it to me. I know goldfish dont need water temperatures like tropical fish do, but I've had him for months in 76-78 degree water and he's fine, eating, swimming, no signs of distress, gill movement is normal. Im not a fan of tetras, or the other community fish that were listed. Thats why I asked about the gouramis.