The Marineland Maxi-Jet 1200 is a multi-function water pump and power head that can serve as a power head, a Laminar flow, or a circulation pump. The device is a workhorse unit that has been on the market for many years, yet still offers a range of capabilities to a variety of aquarium fish hobbyists.
While in power head mode, the Maxi-Jet 1200 is rated to push 295 gallons per hour and 1300 GPH in circulation pump mode. The unit has a sealed intake that makes it ideal to power protein skimmers, calcium reactors or other devices that require some flow. Or drop it in the chamber of your all-in-one nano tank to serve as a circulation pump.
I tested the unit in a 55 gallon long freshwater system in powerhead mode and a 29g BioCube mini-reef system in circulation mode. In the 55 long, the flow was quite strong. It would do very well in supplying enough current for those fish that are accustomed to strong currents. Following the detailed instructions I was able to easily convert between the two options. One word of caution, due to the number of parts the unit ships with to convert between the three modes, I suggest either keeping the parts not in use in the retail box or perhaps a smaller marked box so you don’t lose them, because if you do, you’ll lose the multi-use functionality of the Maxi-Jet 1200.
I’ve been running the Maxi-Jet 1200 for several months and have experienced no real issues. I’ve got one running in my 29g BioCube and a second one set up as a powerhead in my 55g long freshwater system. When initially putting the unit into service, I did have an issue with the fan not spinning properly but that was easily remedied by ensuring the magnetized propeller was secure in its housing. After that quick adjustment the pump has been running continuously.