It depends on what type of Gyre (size) - and what settings you use. For example - at 10 percent - one of the smaller ones MIGHT be ok. especially if you set it to intermittent flow. If its one of the bigger ones - my guess is that you will think its too much flow. It is hard to tell - though - how big exactly is the tank. Since you have it - put it in and try it at the lowest setting - with the highest time between 'pulses' - and see?