Upside down jellys in a 46G bow front

[gogol]

Could I keep a couple of upside down jellys in 46G species tank? I am thinking of getting them from reefscavengers.
Here's the info from their website:
http://reefscavengers.com/upsidedownjelly.html

Let me know if anyone has had any experience with these.

 

[Scottyrock]

i asked about keeping them once, i was told only in a tank w/ no rock and sand bottom. sounds kinda lame! they say if you have rock its only a matter of time till they get caught in it and perish

 

[bayondai]

I didn't think you could keep any jellys in a tank with any 90° corners... I could be wrong though.