I currently have a nano 5 gallon tank that i’ve had for a month now with 6 small neon tetras, 2 male guppies and 3 peppered corydoras. I know it is overstocked however they are all still small. I am planning on upgrading to a 105 litre and I need to advice on what to get which include my current ones. I was hoping to get a dwarf gouramI and maybe platties or mollys in the new tank somehow, any suggestions? The tank is 30 inches long, 16 inches tall and 15 inches wide.