Green grape caulerpa spawning

[untamed]

I grow both grape and halimeda in my main tank and they both "go off" fairly often. I have yet to experience sides effects, so maybe my skimmer handles it.

It is also my experience that you can't "catch it". I think that the total event completes within 6 hours. You would have to be right on the ball to get it in mid change and even then I don't think you could stop the chemical signal that is causing it. (whatever that may be...)

I usually lose 80+% of the algae each time. My algae is grown only for decorative purpose and isn't critical to filtration like it might be in a refugium.