Flow in a macroalgae display

[Ashwinclement]

I am setting up a macroalgae display tank (20 gallon) and was wondering how much flow is required in terms of tank turnover rate? I have a sicce voyager nano 270gph in it, along with a HOB filter which gives around 100gph. I am not sure if the strong flow will blow the macros around, or the macros would do fine.

 

[vetteguy53081]

Low to moderate with sufficient light and oxygen
A little iron helps also

 

[WheatToast]

Mine are doing fine under about 60-70x turnover (of DT's volume) per hour.

 

[Maxcmo]

I had a rough time getting mine going first w no powwr head then and 80gph and finally up to a 270gph and its finally growing well.