Thanks for sharing.
After applying maybe few times will the aptasia come back?
Looks like the Aptasia spits it out or releases spores?
I am dealing with aptasia and did the super glue method and hoping it will work.
Hi to answer your question, in my experience the aptasia-x kills the aptasia. That explosion you see is the aptasia trying to expel its planuals in an attempt to reproduce, however the aptasia-x bonds to them as well rendering all the planual's pretty much dead. I hope that helped...
Ideally you want a lighter touch than that so you don't provoke that reaction of them expelling water from their body cavity to clean off their disc. Larger anemone will survive a treatment after doing this. The lighter touch is harder to do than say, but if you have a good angle on the anemone it's very possible and definitely more effective. (Sometimes the angle dictates you just have to shoot it at them and pray.)
Any time they get buried in sediment, this would be their response to self-clean. Not an uncommon response from any polyp-based animal. I suppose there could be reproductive members in the jet of water, but I don't know if there would always be. Seems like that would make self-cleaning a very expensive behavior ecologically speaking.
Forgot to mention, I have always had pretty good luck using Ap.-X. Joe's Juice too, back when it was available. As long as you get the infestation early where there are few individuals, it's a great solution!