
Based on this photo provided by biOrb I had no idea what was in this package. I'm writing this review today to help my friends at biOrb understand that you replace your underbody filter with it every 4 months. I had a really hard time figuring out where the filter was for this tank and even had to google it. Let me save you some time and explain how to change the filter! This is the first time I am changing this myself because I bought my tank used. You simply unscrew part of the vial and the entire tube comes out with the filter attached to the bottom. This was the EASIEST filter change I have ever had to do. After removing the hose, turn the base clockwise again and the old filter is removed. Throw it away and the new one will spin. Put it back in the tank and let the water fill up and then just twist it to the right and you're done! I love this tank and wouldn't trade it for anything. I've included some photos to show what's included and what it looks like. I also recommend a ceramic medium for your aquarium! Check out my other reviews for more info!

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