$40 S.Gigantea

[clorox]

I'm taking notes as well. What I observe is that it's almost as if they fill up with energy derived from light, then deflate, as if they had too much light. By keeping them in a low light environment, based on this theory, they should never deflate.

The problem is all gigs I've had though QT is that they all release dead (or what is believed to be) zooxanthellae. There just seems to be a tipping point as to where they may have too much dead zoox and can't expel it all. With regards to flow, it's a tough call -- too much and the nem uses energy to remain attached, not enough flow and it works too hard to expel the dead zoox.

Yes, that's exactly my same conclusion from observing them after an inordinate number of hours per day. I am at the point where I am making tiny adjustments of flow and lighting. I am using a combination of a nano koralia, an MJ-1200 and an aquaclear 20 to recreate a gentle swaying flow.
Took me almost a week to dial it right, and only today I seem to have found the correct ratio. Now I am playing with light intensity, manually 'dosing' from 20% to 60% and back to 20% for a couple of hours and observe any reaction.:fun5: