I currently have a 34 litre Aqua Style all in one tank. I have 1 Dwarf Gourami, 1 Guppy, 2 Neon Tetras, 1 Pearl Danio, 1 Leopard Danio, 1 Zebra Danio and a Bristlenose Catfish. I have only had the tank for around 2 months (and this is my first tank) but am looking at upsizing. I think I will be...