"Biorb Life 45ltr Aquarium Black The biOrb LIFE 45 is supplied as a coldwater aquarium. It is suitable for fantail goldfish but looks really stunning with a group of tropical fish of the same species such as neon tetras or tiger barbs. You can decorate the lower part of the aquarium and these type of fish will occupy mostly the upper part. To keep tropical fish you simply need to add a heater. Use either the biOrb heater pack or our Intelligent Heater. Like all biorbs, the biOrb LIFE 45 uses special ceramic media to provide biological filtration, which has a surface area equivalent to the size of a football pitch. Any excess waste is collected and held in a filter cartridge at the base of the biOrb. To maintain your biOrb LIFE all you need to do is simply replace the filter cartridge every four weeks and change a third of the water. All biOrb LIFE aquariums are supplied with an Intelligent LED light which automatically replicates a natural 24 hour light cycle. For your peace of mind, the lights and pump are low voltage and are backed by a 12 month guarantee. The aquarium itself is made from acrylic which is ten times stronger than glass. Available in three colours Chilli Red, Piano Black and Ice White. If you're looking for a high performance aquarium that is suitable for a wide variety of fish, then choose biOrb LIFE 45. What's in the box? biOrb LIFE 45 litre aquarium 12V Intelligent LED Light Ceramic media Air stone Filter cartridge 12v transformer Low-voltage air pump Water conditioner and beneficial bacteria liquid Fish food Instructions Dimensions Height: 23 inches (58cm) Width: 15 inches (38cm) Depth: 10 inches (26cm) Weight (Full): 111 pounds (50kg) Safety standards Complies with UL, ULC and CE safety requirements Question : Can you use normal aquarium gravel in the biorb range? Answer: No ! The only thing they advise you use is the ceramic media, they advise that if you use gravel it does not let the water filter to the filter pump, any small bits of gravel can get caught in the filter pump. As well as it will scratch the inside of the biorb. Soloution: If you want a colourful tank they suggest using large smooth pebbles on top of the ceramic media. "