Upside down jelly fish

[4n2xtacy]

Hi guys, have anyone had any success with the upside down jelly fish in a reef aquarium. Online says they not reef safe but my LFS has one in his mixed reef. He says they totally harmless. If I get one what should I look out for or should I just let it go and not mess with it...lemme know watchu think. Right now I have a:
1 diamond gobby
1 leopard wrasse
1 marine betta
1 snowflake eel
1 fire fish.
1 chromis
1 Anthias
Shrimps, snails, starfishes,crabs.

Corals:
Lord Acans
Leather coral
Hammer coral
Zoes
Gorgonians
Clams
Lobo coral
Brain coral
Green polyps.

 

[Saveafish]

Ive had several over the years. Loved them. Pumps always killed them.

 

[4n2xtacy]

Ive had several over the years. Loved them. Pumps always killed them.

So they dont bother the fish or corals? I have my tank set up I. A way to prevent fishes into any over head.

 

[Saveafish]

So they dont bother the fish or corals? I have my tank set up I. A way to prevent fishes into any over head.

They at worse might catch a micro gobie like the little yellow or blue strip ones. I fed mine plankton and they did great.

 

[4n2xtacy]

They at worse might catch a micro gobie like the little yellow or blue strip ones. I fed mine plankton and they did great.

Thanks a lot. That was most helpful.