The best way to change flow?

[Lylelovett]

Hi all,

I've had my tank for several years - mostly softies and a couple sea anemomes... and some fish. :) It's a 5'x2'x2'

Up to this point I've had a fairly basic flow pattern of two Tunze's, one on each end with flow meeting in the middle. I'm considering switch to create a gyre type flow...

Is there a best practices for dramatically changing a flow pattern so it doesn't shock the inhabitants of the tank to severely?

Thanks for any input/experience you can provide!

 

[vetteguy53081]

Gradually in 2% increments