I was up late last night and something was spawning. I think I caught the tail end and I was too tired to figure out what exactly it was, but I did get some video clips. Back in October I had a sarcophyton spawn for quite some time. It appeared to only be one. I never had any babies pop up, but in my frag tank I have had weird babies pop up that may be the result of spawning (they could also be bits from fragging that just latched on to eggcrate). Will be interesting to see what other people have had spawn in their reefs.
March 15th 2020 my Rhyzo spawned
This one really surprised me! It's too bad I don't have physical room in the tank for more of them and of course they are quite pricey.
March 1st 2018 I had a mini carpet anemone spawn
This has happened more then once but this is the only recorded time, interesting that it's march as well.
I've also had a flower anemone spawn, which I don't have video of. I actually just recently noticed this anemone disappeared, it didn't move for years then started to wander now it's gone. Also pocillipora which pretty much everyone who has it does end up having it spawn, I have baby frags all over the back of my rockwork. My original colony was started from just a tiny frag so it does seem possible for corals to reproduce sexually even starting from 1 frag at least in this case.
Let's see what else is out there spawning!