Free Shipping! The New Nano Rocket Filter tm Patent Pending. The Only Air Driven Aquarium Filter MADE In AMERICA. Many have asked for a smaller version well this is even smaller. Its smaller than an index finger and Perfect for a 2 gallon aquarium. Look at the photos below. The Nano Rocket filter is a new design from the common box/corner filter that will out perform any sponge filter. This filter comes with the media and is ready to use. This filter can be used in most fry tanks – replacing the sponge filters. If any of the “Rocket Filters” clogged they would be pulling a negative vacuum and float to the surface. Not only will the “Rocket Filter” tm make your aquarium crystal clear but it is a very good nitrifying filter and you will be able to tell when it needs to be clean by the color change on the fiber material. – No ammonia spikes as you have with sponge filters and will not slime up as sponge filters do. Each filter comes (is packed) with gravel and floss. The one pictured is for 2 to 5 gallon aquariums with a very small foot print. Will ship world wide supply me with your city country and city/country code and I will give you shipping costs. This auction can not be combined with any other. Free shipping on this item!