I had a large batch of Sea Nettle ephyra born early last month. There were probably 80 total. Everything was going well and they were all slowly growing. Then I had a large die off, leaving me with 3-4. Well in the end, two of them pushed through. I needed to move them from their mini grow out tank to something larger. In the process of experimenting, I killed one more. So I was left with one Sea Nettle. I babied this thing like it was my own child. And it's grown to a stable size now. I will give a little bit of info on how I did it.
Once the juveniles grew out some of their fine tentacles, I moved them to psuedokreisel tanks to grow out. My one last Sea Nettle is still growing out right now. Ive caught many wild Atlantic Sea Nettles from North Carolina to Florida. They are always beat up with really short tentacles. The Sea Nettle Im growing right now is absolutely pristine. It's amazing how much of a difference captive raising can be!
I'm giving my polyps time to rest, but I would like to get another batch of ephyra going, and give this a third shot!