The Tunze Turbelle Nanostream 6020 and 6040 are great options for nano tanks. The 6020 is well suited for tanks from 20 - 40 gallons and the 6040 for around 30 - 90 gallons. Assembly of both pumps is pretty easy. Inside the box you'll find 3 components; the pump, and both sizes of the magnet holder. Basically all you need to do is push the blue rubber silencers attached to one side of the magnet holder and then insert into the appropriate holes on the pump and it is assembled. The controllable 6040 has a control box which needs to be mounted somewhere accessible, but away from water. A cool feature of these pumps is the scoop on top which allows it its low-profile that can be aimed in any direction. You can place it in a variety of areas with the magnetic mounts. The 6020 is an AC powered version that you can just plug in and you're ready to go. The 6040 is a DC controllable pump and you get a few more fun options stating with being able to adjust the flow from anywhere between 50 to 1200 gallons. What’s really cool about the 6040 is you don't have to settle for simple on/off. You can also use the 6040 to produce a standing wave in the tank. If you have any questions for us or your fellow reefers, leave a comment below! Don't miss our next episode of BRStv, hit that subscribe button. Connect with us on Facebook: Check out our pics on Instagram: *Legal Stuff* The purpose and content of this video is to provide general information regarding the products and their applications as presented in the video. Aquatic sales solutions, inc. And its officers, directors, employees and agents disclaim all express or implied warranties, in any way, related to the products and their application as presented in this video, make no representation or warranty regarding the products and the application as presented in this video and shall not be liable for any direct or indirect losses or damages of any type, including but not limited to punitive damages, or from personal injury or death resulting from or in any manner related to the video, and the products in and contents of the video. The viewer expressly agrees that aquatic sales solutions, inc. and its officers, directors, employees and agents shall not be liable for any damages or losses related to the products in and content of the video and hereby agrees to hold the foregoing harmless from any such losses or damages.