Jellyfish showing up in tank?

[KarlainKY]

Not sure if ive linked this video right or not but heres a swimming creature I didnt put in the tank. Reminds me of a jellyfish. Any ideas what this is?

http://s1293.photobucket.com/user/karlalhill/media/Mobile%20Uploads/20140309_132343_zps94b1c01a.mp4.html

 

[Calappidae]

That's a jellyfish. I've seen this happen before in the past. Not sure what exact species tho.. can't really keep them alive long term.

 

[Betta132]

I've had a couple of teeny jellies show up.
Reason is simple; baby jellyfish start out as tiny polyps. They can hitch-hike in very easily. Unfortunately, without a dedicated setup you have no chance of keeping one alive for long-term. They get sucked into filters or hurt themselves on walls; jellyfish need tire-shaped tanks with a soft flow pushing them around.

 

[Calappidae]

I've had a couple of teeny jellies show up.
Reason is simple; baby jellyfish start out as tiny polyps. They can hitch-hike in very easily. Unfortunately, without a dedicated setup you have no chance of keeping one alive for long-term. They get sucked into filters or hurt themselves on walls; jellyfish need tire-shaped tanks with a soft flow pushing them around.

^This, well put.

Feedings would also be needed in their own species setup..

I know upside-down jellies need high lighting.. but I'm not too sure if that goes for all of them.

 

[Elysia]

Jelly fish aren't the only animals that produce medusa like that (if memory serves), hydroids do as well.

 

[Betta132]

Judging by the shape, it's a jelly and not a hydroid. I've seen these in my tank, but they didn't last.

 

[Whiterabbitrage]

Have these in my tank too. Caught one a few months ago and put it in its own tank. Now it's dime sized. I think its Cassiopea species. The research I've read says they are expert only so I don't expect him to live much longer but am trying my best. He's very cool!

 

[thenewguy997]

Thts so cool.... I love this hobby

 

[Whiterabbitrage]

Me too! :bounce2: