1 x Air Stone
Rated for use with Heat emitters and lamps up to 300w
Durable construction: Engineered to provide robust support for your aquarium
The gel does not contain toxins that are dangerous to sea life
The biOrb Décor Set ""Autumn"" contains some of our favourite aquarium decorations to bring your 30-litre biOrb to life
NT Labs Aquarium Filter Starter 250ml Cleaing & Maintenance 1 x Air StoneWhen to use? If left, fish waste will build up and become toxic. Filter Starter contains Bacillus megaterium, B. pumilis, B. licheniformis, Paenbacillius polymyxa, Nitrosomonas spp., Nitrobacter spp., and Nitrospira spp. These friendly filter bacteria break down fish waste, making the water safe for fish. Add to a new aquarium to help kick start the filter, when adding new fish, after a filter clean water change, or after using a disease treatment.