FREE SHIPPING!!!! The New MICRO Rocket Filter tm Patent Pending. The Only Aquarium MADE In AMERICA. Many have asked for a smaller version well this is it only 3” tall Perfect for a 2 –to 5 gallon aquarium. This Micro Sized 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. It can be used in Betta and Betta fry tanks without any danger to the fry. 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. Free Shipping USA Only. Will ship world wide supply me with your city country and city/country code and I will give you shipping costs.