Moon Jelly Help

Simply Fish
  • #1
Recently I asked to help out with the jellyfish tank at my school, but I know much more about freshwater than saltwater, so maybe you guys could help me out.
The tank is 6 gallons and doesn't have a mechanical filter, only a carbon "pad?" Here is a link to the cite that sells it:
DESKTOP JELLYFISH TANK
There is nothing in the tank right now, but it is "cycling... " The parameters are:
ammonia 0
nitrite 0
nitrate 0
Yeahhhhhh.... so obviously no cycle. Today I added some food in hopes of producing ammonia, but I know I have a long ways to go. I was wondering if I could use a seeded filter pad or something to that extent from one of my freshwater tanks to cycle the saltwater tank, does anyone know if this would work??? I know it sounds unlikely.... Other than that, what should I do? Any tips or advice are appreciated!
 
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Culprit
  • #2
No idea about jellys. Seems like a kind of small tank... If there's no filter how can you cycle? Won't you need some live rock in there?
 
2211Nighthawk
  • #3
I know what they’re talking about and honesty, I thought it was fake jellies or a joke. What my 2 cents worth of knowledge about jellyfish is, they’re free floaters so they don’t need the books and crannies of live rock. They need saltwater and a steady gentle rotating current. Up one side of the yank, across and then down again. That’s why they’re round tanks like that.
 
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Simply Fish
  • Thread Starter
  • #4
Yes, because jellies are free-floating, live rock is actually bad for them, as it can damage their sensitive bodies/tentacles.
 
Simply Fish
  • Thread Starter
  • #5
*Update, there is a small portion of gravel in the tank for bacteria, if that makes any difference.
 
2211Nighthawk
  • #6
Not in a filter sence. Weird. Does it have any kind of pump/powerhead/make-water-move thing?
 
goldface
  • #7
Funny I was actually sorta contemplating about getting one of these. I happen to have an old TFH magazine from last yr with an article on jellyfish specific tanks or kreisal tanks. Just an fyI to others reading this and not really intended for the OP, but traditional aquariums are in short, a bad idea. For cycling, it seems like getting some live rock from a lfs is your best bet.
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Simply Fish
  • Thread Starter
  • #8
Not in a filter sence. Weird. Does it have any kind of pump/powerhead/make-water-move thing?
Along one side of the tank there is a powerful bubbler to create a strong circular current in the water.

Also, although live rock sounds like a good idea, I'm worried the current would blow the jellyfish into it, resulting in them getting stuck and/or injured.
 
2211Nighthawk
  • #9
The bubbler is the important part. They HAVE to have a steady current. No idea about live rock for cycling. It should work but I hav no ideas how salt water works. I’m just going off the head knowledge I accumulated reading way to many books.
 
Culprit
  • #10
Going off what scarface posted that looks like it will work. Is there anyay you can put some biomedia/liverock rubble in with the carbon pad for a cycle? I don't know how heavy a bioload jellies have... probably not much. You may be able to get away with just a sandbed as long as you have good water movement. It looks like it'll be super cool. What do you feed them?
 
Nart
  • #11
I only know a bit about jellyfish.. but according to the link you posted. The biological filtration are those ceramic looking media beads within the display.
Looks like within that set-up the pump directs the flow in a circular motion within the tank which the jellyfish requires in a tank enclosure. Though, I am not sure if having those ceramic beads in the display will harm them in there though. so you might want to check on that.

The best way to get the cycle started is using 100% Ammonia liquid or Ammonia Chloride (HCL) powder. This way you can exactly control the ammonia going into the tank without having to worry about if you put too much or too little. Same concept as freshwater. Using freshwater bacteria will not give the Saltwater tank an instant cycle. I tried before.

As far as caring for the tank. Actually, jellyfish requires daily feeding, and they do dirty the tank fairly quickly. Also given that they are sensitive to nitrates, folks with less than 10 gallon jelly fish tanks found themselves having to perform water changes at least twice a week.
 
Simply Fish
  • Thread Starter
  • #12
Ok! Today I checked what the gravel-looking substance was on the bottom of the tank and it is, "Reactor Media" The brand is "ARM" I have never heard of this before, is it good for bacteria?
 
Nart
  • #13
no idea - but as long as it's porous. bacteria will grow on it. Actually beneficial bacteria grows everywhere, but the more porous it is, the more bacteria it'll hold.
 

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