Up side down jelly keepers?

[Whiterabbitrage]

Captured a tiny jelly in DT that I thought was a medusa stage. Put. It in a back tank to see what it would morph into. It has grown into what looks like a Cassiopea jellyfish. Online research agrees that they are difficult/ impossible to keep. Help! Please! I want to keep it alive as long as possible but can only find rudimentary info on them online.
Photosynthetic; needs good lighting
Filter feeders; requires zooplankton
Keep water parameters steady
Particularly sensitive to swings in salinity

Any help would be hugely appreciated

 

[Calappidae]

Also add that any uncovered intakes and the corner of glass tanks will rip them appart.

 

[Whiterabbitrage]

here is the latest pix of him.

 

[Calappidae]

He's small now but keep in mind they do grow big (I think 6"+?) and they have a short lifespan of only around a year meaning he won't stay that little that long.

 

[Whiterabbitrage]

I'm just trying to keep him alive as long as possible. I can't believe he grew from one of those teeny jellies that float around my tank sometimes. So cool!

 

[Calappidae]

He might live longer than that. Keep us updated with how he's doing!

 

[Mazzy]

The ones at my LFS actually seem completely hardy. They've been in some little 1-2 gallon selling tank for months (no one is buying them since it's rare that someone has a jelly tank). I almost wonder if they thrive on neglect! lol

 

[Whiterabbitrage]

Thrive on neglect?! He might make it after all. I sure would like to see how big he'll get. Keep your fingers crossed guys!