Aquaclear powerheads

[Ruth]

I have 4 tunzes running on my systems and have never had one fail to re-start after a power outage (and I live in a rural area where the power goes out fairly frequently) nor have I ever had an anemone have a run in with one - and I have 5 anemones - 2 RBTA, 1 GBTA, 1 Seabae and one Green Carpet. I do have my Tunzes positioned quite high in the tank using the magnet holders.
I do have a hagen power head in my 10g nano that always has to be jiggled after the power goes out.