High flow in wild situations
High flow in wild situations
I was amazed at the density of clams in a reef cut in Bora Bora. The current was always several knots -- like a river and fast enough you can't even come close to swiming against it. The maximas were shoulder to shoulder.
On the other hand, also found lots of them in the lagoon in areas with almost zero flow.
So while I wouldn't put a powerhead blowing directly at one, I would imagine they can tolerate most flow conditions.