The new biOrb 105, which holds a massive 105 litres/28 gallons, is nearly twice the size of the current largest biOrb, which holds around 60 litres. At 105 litres or 23 UK gallons the new model holds the same volume as a 90 x 35 x 30cm standard aquarium, opening up new opportunities for fish stocking.

Filtration and shape is as for the existing biOrbs and it comes in two trim colours, black and silver. Even with the increased size, these tanks only require an easy filter change every month to keep the water clear and, just as importantly, healthy for the fish.