I'm dead. My brother got me into deep trouble. he's a jerk. he bought a jellyfish. it is so terrible.  i think it'll die very soon. what im more concern is that it'll give out poison. and it is constantly stucking at the filter so i had to off the power now. untill i get a divider to divide the filter away from the jellyfish.  help what should i do he even bought a clark's clownfish. it seems like it's limping all the time . help help should i keep it or i should perform euthanesia. it is impossible to return pets to the shop. please help.  i know i'm asking really weird questions but it's all because of my stupid brother.

Carl wrote: Jelly fish are NOT compatible with a standard reef setup. Actually, they are not reef compatible at all. They are generally a deeper water animal and the survival rate in a home aquarium is dismal.

Hmmm, disagree here.  I think Jellies are found all over reef systems, and I wouldn't hesitate to put them in my tank.  Only a couple of us have had them, but we have always loved them.  Mark had this big blue jelly for a while that was awesome.  Cassiopea jellies are quite common, and people consider them reef safe.
I do agree that their survival rate is dismal, but then again 90% of our fish don't live a year either.

Adam

Hhhhmmm.... perhaps I am misinformed. I will read up on it and re-evaluate my opinion. Any time I have seen jellies they have been in more open water, even when I lived in Florida. True, it depends on the species and some will move to shallower water at times, but I never noticed them swimming along a reef.  I thought that they require special conditions not often found in a home reef, and I cannot remember their food source. I know that my reef is not suitable for one and I am not ready to host one. I have considered a jelly tank at some point in the future, but I have much to learn first.

I did see the most beautiful jelly display at the Texas State Aquarium in Corpus Christi. They had several varieties there and it was incredible to see. If you are ever in the neighborhood...

Somehow that not-reef compatible doesn't fly with me.  I've seen so many on reefs, and even been stung by them while diving in lagoons.  Food source is a big deal with jellies if you ask me.  I think people can't keep them because of lack of food.  But if you are one those many people in our club culturing rotifers or phyto then I think you would be fine. 
Also, I think the other big jelly killers are powerheads and overflows.  That, may be a great reason to not buy one.  Most of us just have too much thrashing and motion for the jellies. 
So I guess I should say that I wouldn't recommend buying them for your reef tank, not because of damage to your reef, but because of damage to the jelly.

Adam 

OK, spent some time researching... I found a few good links and ywo of the easiest reads are http://www.aquarium-design.com/jellyfish.htm - http://www.aquarium-design.com/jellyfish.htm  and http://jellieszone.com/jelliesportal.htm - http://jellieszone.com/jelliesportal.htm

Live plankton is a good food source for most but live baby brine may work as well. Some are also photosynthetic. The biggest concern to me regarding jellies in a home aquarium is that most often require cold temperatures at 50-60 degrees. This is how I remember them and why I said that you won't often find them on a reef. But, don't always believe what you read. Maybe it is possible to keep one responsibly. It appears that the cassiopea MAY be an exception.

Adam Blundell wrote: I do agree that their survival rate is dismal, but then again 90% of our fish don't live a year either.

Adam Blundell wrote: Carl wrote: Jelly fish are NOT compatible with a standard reef setup. Actually, they are not reef compatible at all. They are generally a deeper water animal and the survival rate in a home aquarium is dismal. Hmmm, disagree here.  I think Jellies are found all over reef systems, and I wouldn't hesitate to put them in my tank.  Only a couple of us have had them, but we have always loved them.  Mark had this big blue jelly for a while that was awesome.  Cassiopea jellies are quite common, and people consider them reef safe. I do agree that their survival rate is dismal, but then again 90% of our fish don't live a year either. Adam

Although I agree that Jellies are sometimes found in reefs and maybe reef compatible.  I don't think they are reef aquarium compatible (except for Cassiopeia andromeda the Upside Down Jellyfish).  Jelly fish usually need a cylindrical tank with a very low waterflow.  Most reef aquariums are a square aquarium with high waterflow.

Jake,

In a later post I did say that I wouldn't recommend them for the reasons of high water flow and dangers impellers and things like that.  I agree with what you just said.

Adam

True,

Then I agree with what you said.

I agree that Jake agrees with Adam who agrees to disagree.

I like jelly on toast!

ok sorry i am so sorry for not replying. i wanted to come in here yeterday but i cant get into the site.
1st. my tank is fully cycled
2nd. the parameters are fine
3rd. i do not live in states so even if i said the shop of the name which i dunnoe either it serves no use and they would never take back sold pets. they're afraid of diesease and stuff
4th. it's a really common jellyfish. like a totally white one with some spongy legs at the bottom really most common one. i was told there are also blue ones.
5th i dun have a reef tank it's a FO tank. but i'm afraid it'll hurt my fish i got 3 chromis. and my brother bought a clark's clownfish and this jellyfish without my permission so i guess my tank is overcrowded now. it's a 16 gallons tank.but i'm just afraid it'll hurt my other chromis. thought it did not do anything i saw it got stuck to my filters a few times. so i pushed it away. my brother then bought this new pump so something that sucks water through a sponge. i really don't know what to do now. i cant keep it neither can i return it....

ohh ok i got frozen brine shrimp, frozen mysis shrimp and this fish pellets. it's this really weird brand from chin i guess hmm let me read the ingredients

fish protein , quality white fish meal , krill , carotene , spirulina , shrimp meat , yolk meal , algae meal , wheat germ , dried yeast , soybean meal , wheat flour , antarctic shrimps , protease , stablle multi vitamin and mineral, lecithin , immune substance , citric acid , calcium , enzyme , organic minerals vegetable extracts.

it's kinda cheap like 40g for U$2. so is these good or shouls i get those that you mentioned ?

hey hey i know... is it the seaweed wrapper to wrap the japanese food thing... theres it everywhere if thats what you're saying. but is that food healthy ? it's kinda popular here people just buy the instant ones and eat it plain. but it's spinkled with salt so i'm afraid it'll damage the water. but theres another kind where it's totally plain just use for making the sushi. so i guess you're saying the second one./ if i were to get that how often should i feed the fish?

p.s. thanks again mark for answering my question... btw if i were to get a bigger tank later in the year how big of a tank should i get. i was thinking of upgrading my fish tank

ok... thanks... but heh? 3000 gallons ?   hmmm ok..... but seriously i was thinking of getting a 60 - 120 gallons 1 piece glass tank. but i guess i'll have to start saving now anyway i couldnt get the suction thing because i dunnoe what is it is there any picture where i could see it ? or not i could just tie it to a rock. but elastic ?? is it rubberband ?

oh and the other time i told you 'bout the geoliquid it's made from japan and once you put it in it'll turn the water cloudy but te cloudness will disappear overnight and it's something like a all-in-one suppplient. it would kill harmful bacterials and would increase or decrease the parameters untill it's perfect.

yeah i know you're kidding... but sorry i never came before the word elastic to be used as rubber band in singapore we don't use it oh but it's only like few hours to aussie hm so btw  i know i add it only when i change or refill the water. and i kinda got ph , ammonia , nitrite and nitrate tests only. is that sufficient ?  or do i need to get more ... oh i i'll be getting the corals next week. so do i need anymore test for the corals >? 

btw how do you change the location ...? i randomly placed my locations the other time

oops sorry i guess it's sort of a bad habit... sorry ok i'll keep to one question. 

first.  i placed the nori in already with the rubberband. thanks. the fish shop doesnt seem to sell the clip i saw in on the website you told me how to go.but i dunnoe why is the fishing line useful for as in it's easier accesible to the food but why do i need to take it out ?

and i was just saying the corals thing cos' i've said it in the previous thread that i'm gonna get it but i havent get it till now so next week i'll go get it. really sorry if i've made things difficult round here