Bob, LOL, softy tanks with xenia do not need a lot of flow; and never put it in the path of a powerhead or return.
In my 75 gallon tank I had two maxjet 900 and a wavemaster. I upgraded to two 6025 Tunze to save electricity and I had to face the powerheads straight up because it was too much flow. So remember, when someone tells you they have 1,000,000 gallons per hour of flow in the tank, it's not always a good thing. That's why you end up with xenia all over your tank and you end up hating the stuff.
Just my two cents. Experiment, shut off your pumps and watch your xenia pulse away.
Hope that answerers you question.
Ronnie
Ronnie