As much as I gushed over the Silverfish aquarium, it's pretty bulky, so I know it would never fit in my apartment. The AquaVista 500 ($330), on the other hand, is right up my alley. Coming in at just under two feet wide and two feet tall, this six gallon tank is perfect for your tropical fish to hang out in . . . literally. Just remember to follow the fish-to-inch ratio! Plus, at only four inches deep, it won't stick out like a sore thumb, which means less chance of someone walking by and getting a smack on the head! To see why I like it, just read more