It is a different company but same type of filter. Find the one best suited for your needs and I am sure you will be very happy with it. Misty was a tiny baby betta with hers and it did not blow her around. There is an adjustment and you will not need to have a different airstone and tubing in the tank unless you wish as it puts oxygen into the water as it pumps it. You are able to adjust the amount of oxygen too if I am not mistaken on most models. I love the Duettos. The replacement parts are nice too because the prefilter and biolgical fiter are seperate. When you need to change one the other stays in the filter and so you do not lose the bacteria. I only used the carbon inserts for medication removal and you will probably too since you will be using it for a hospital/quarantine tank. They are kind of expensive to use all the time as they would have to be used all the time. Alternately you can get some carbon cloth or fiber material (ask at the LFS) and cut it to fit the area you have and fit a small piece into the filter to take the place of the boughten cartridges. It is much cheaper just do not use loose carbon, you will burn up the motor.
Use your own judgement, but I like either filter. I am just more familiar with this one. It is a great filter.
Rose
