Jellyfish?

My daughter just brought back from Sandy Hook beach (NJ) about 1/2 dozen
animals (jellyfish?), that resemble a 1/4 inch disc, the size of a 1/2
dollar.

The water she transported them in, was very cold, because she placed the
vessel in the cooler.

The animals are transparent, and I placed them in the water. So far, all
I've seen them do, is move around the tank at the whim of the
powerheads; i.e., there is no movement of their own.

My question, are these animals supposed to show some self propulsion? Or
do they just "go with the flow?"

Also, will they survive the tropical temperatures of my reef tank? Or do
they need the somewhat cooler waters of the NE?

TIA,

Richard












--
"..A census taker once tried to test me. I ate his liver with some fava
beans and a nice chianti..."

Hannibal "The Cannibal"

Silence Of The Lambs 1991

to keep them long term will require a special tank search around for kreisel(sp) or
pseudo-kreisel(sp), it will have to have a circular water movement directed to keep the
animals off the bottom, and no sharp objects or normal overflows/filter tubes. I know some
jellies can make it in the tropical waters, but unless you can ID the critters you have, i
dought you could be certain

they will also be very specific feeders, requiring live food often, not something usually
desired in a reef.

hopefully someone with more knowledge will hop in here as he does do that sometimes
when I thought about getting my own, i researched it and came to the conclusion that for
me and now, it wasnt worth the effort/time/money to keep such a delicate creature.

--
Richard Reynolds




"Richard Periut" wrote in message ...


My daughter just brought back from Sandy Hook beach (NJ) about 1/2 dozen
animals (jellyfish?), that resemble a 1/4 inch disc, the size of a 1/2
dollar.

The water she transported them in, was very cold, because she placed the
vessel in the cooler.

The animals are transparent, and I placed them in the water. So far, all
I've seen them do, is move around the tank at the whim of the
powerheads; i.e., there is no movement of their own.

My question, are these animals supposed to show some self propulsion? Or
do they just "go with the flow?"

Also, will they survive the tropical temperatures of my reef tank? Or do
they need the somewhat cooler waters of the NE?

TIA,

Richard












--
"..A census taker once tried to test me. I ate his liver with some fava
beans and a nice chianti..."

Hannibal "The Cannibal"

Silence Of The Lambs 1991

.....
that resemble a 1/4 inch disc, the size of a 1/2
dollar.

from the sound of something that small, I'd think come sort of ctenophore or
comb jelly. Do they have tentacles? If the answer is no, just a couple, or
more like cilia - do a search on the above names. If they have multiple
tentacles, it could be some juvenile jellies or hydroid medusa or something
else entirely

My question, are these animals supposed to show some self propulsion? Or
do they just "go with the flow?"

Yes they do have their own propulsion mechanisms. Many ctenophores do appear
to just "float there" though. Look very closely at them, if there are cilia -
you should be able to see them move. Try looking at them under a black light
or 20,000k, this helps.

Also, will they survive the tropical temperatures of my reef tank? Or do
they need the somewhat cooler waters of the NE?

Depends on species, many will acclimate to warmer waters but takes a little
time. I'd suggest keeping them in water of a similar temp to what they came
from though.

For food, try Artemia nauplii or rotifers.
More than likely, they get eaten by powerheads unless you guard against this.

James

humm guess i wasnt so far off on some of it at least

musta been the subject that got your attention


"hopefully someone with more knowledge will hop in here as he does do that sometimes "
and he has spoken


--
Richard Reynolds