The Cobalt Clearvue Internal filter is a unique and innovative design that has the beginner fish-keeper in mind, but the performance that a hobbyist will appreciate. The filtration chamber makes it very easy to see when the filter needs to be replaced or cleaned. The user can decide to recycle the entire container and replace without ever touching the "dirty" parts. The more hobbyist driven can clean the sponge out and reuse. The bottom mounted motor and omni-directional output make the filter very flexible in placement and use. It can even be used in terrarium environments to create water fall effects! With its low power consumption and a flow rates of up to 160gph, this is a great filter for tanks up to 45 gallons.