Zoa Skirt/Tentacle Extension

[Sacrifice]

Evening everyone. Last night I added a turbulent nozzle to my return and bumped up the power on my wavemaker. Today all of my zoas are extending their skirts/tentacles longer than I've ever seen before. They all seem happy and open, but I'm wondering if this is harmful for them. For now I turned down the flow again, but was curious what everyone thought.

Here a pic and video to show you what I'm talking about.