interesting observation about xenia and it's pulsing

[jacksonpt]

From everythign I've read and everyone I've talked to, it seems that no one really knows why xenia sometimes pulses but other times doesn't.

So with that said, I find this to be very interesting. I had been running 54w of PCs over my 12g tank (27w actinic, 27w 10k) and my xenia rarely pulsed (though grew very well). Today I upgraded to a 70w Ushio halide (14k) and within 10 minutes of the halide being on the xenia were pulsing. It'll be interesting to see if it lasts.

[drbronx]

Xeniids definitely pulse more vigorouslyt under brighter light but there as yet no consistent theories about why they expend valuable energy to pulse. It is not a feeding response since they have no digestive capability. its just a very cool mystery and mesmerizing to watch.

[pncpon]

I find that when is in strong current it stops pulsing and when in slow to no current it pulses

[nwrogers]

I noticed the same thing about the flow. Also I noticed if my calcium is low it stops pulsing...