AquaticEngineer Posted January 15, 2010 Share Posted January 15, 2010 So this must be the third time this year that I have seen a random jellyfish type creature pop up out of no where in my tank. Always the same, purplish brown color, same size, doing the same thing. They will occasionally get swept into the current of the tank but for the most part they would just pulsate at the bottom in the sand. I finally managed to catch one and took a quick video of it. It now resides in my refugium http://s246.photobucket.com/albums/gg100/Stuwobbe/Reef/?action=view¤t=P1140033.flv It looks really similar to the upside down jellyfish I saw at the Boston Aquarium, could that be possible? Anyone else ever have these pop up? Good, Bad? What would you recommend I do? I've thought about setting up a small tank so you can better see them, maybe something just plumbed off of the main tank. Quote Link to comment Share on other sites More sharing options...
stylaster Posted January 15, 2010 Share Posted January 15, 2010 sure looks like a jellyfish to me, no clue on the type though Quote Link to comment Share on other sites More sharing options...
reef165 Posted January 15, 2010 Share Posted January 15, 2010 Ya, I had a couple of them in my tank several years back. I saw two of them for about a month, kept a close eye on them since they are/were so cute, but lost track of them after about a month and never saw them again. Quote Link to comment Share on other sites More sharing options...
Mikep503 Posted January 15, 2010 Share Posted January 15, 2010 Pretty hard to see it (scratch) That would be sweet if it's a jelly fish. Quote Link to comment Share on other sites More sharing options...
snowpunk Posted January 15, 2010 Share Posted January 15, 2010 Yea, I had 5 in my sump at one point. Eric was the one who made me tell the forum. I just thought I was crazy. You may be able to find my thread somewhere. One of my sump walls broke so my water fluctuates too much now so I think they got flushed into the main tank and were probably eaten. Quote Link to comment Share on other sites More sharing options...
Hoss Posted January 15, 2010 Share Posted January 15, 2010 I just want to say that that is so cool...so here goes: "That is SO COOL!!!" I would flip out if I had jellyfish spawning in my aquarium. If you've ever been to the Newport aquarium, they have a jellyfish spawning exhibit. The jellyfish start out attached to the substrate by a stalk, and once they are more fully developed they start to pulse until they break free and swim off...it was really cool to watch. Is it possible that you have some still attached to the rock somewhere in your tank? Quote Link to comment Share on other sites More sharing options...
CA2OR Posted January 15, 2010 Share Posted January 15, 2010 I have some of them now....I had some before too but they almost seem to come and go. Quote Link to comment Share on other sites More sharing options...
AquaticEngineer Posted January 16, 2010 Author Share Posted January 16, 2010 I have some of them now....I had some before too but they almost seem to come and go. Yeah they totally do, I've seen at most like 5-6 at once and then nothing for months. Quote Link to comment Share on other sites More sharing options...
AquaticEngineer Posted February 14, 2010 Author Share Posted February 14, 2010 Found 5 more jellies swimming around in the main tank today. Going to shoot some more pics and video when the camera is fully charged Quote Link to comment Share on other sites More sharing options...
AquaticEngineer Posted February 14, 2010 Author Share Posted February 14, 2010 Random coincidence maybe, but its almost exactly 1 month since the last time they popped up. Quote Link to comment Share on other sites More sharing options...
Mikep503 Posted February 14, 2010 Share Posted February 14, 2010 Very sweet! Quote Link to comment Share on other sites More sharing options...
AquaticEngineer Posted February 15, 2010 Author Share Posted February 15, 2010 Heres the latest video I took. http://www.facebook.com/home.php?#!/video/video.php?v=301932276055 Quote Link to comment Share on other sites More sharing options...
Saltfinsax Posted February 15, 2010 Share Posted February 15, 2010 I am no expert but from what I am seeing looks to be baby's that come out of the little Hydro worms that you get on your rocks. Next time you start seeing them swimming around start looking at the patches of them worms and you will see them come out of the tubes. I have a lot more of them worms then I care to have now. Some say they can play havoc on your corals, but some corals like Monti's just grow right over them. Quote Link to comment Share on other sites More sharing options...
AquaticEngineer Posted February 15, 2010 Author Share Posted February 15, 2010 Got any pics of what those worms look like? That could very likely be what they are. Quote Link to comment Share on other sites More sharing options...
Saltfinsax Posted February 16, 2010 Share Posted February 16, 2010 This is my last big patch of them. I am glad there finely disappearing as there where getting out a hand at one point. [/img] Quote Link to comment Share on other sites More sharing options...
Barelycuda Posted February 16, 2010 Share Posted February 16, 2010 They look like hydroids. The are very common if you feed or hatch live brine. I have them all the time in the growout system. Do a search on them and you can find out more info. Also very common to people breeding seahorses as they typically hatch live brine out also. Quote Link to comment Share on other sites More sharing options...
AquaticEngineer Posted February 16, 2010 Author Share Posted February 16, 2010 Found this neat little diagram, I bet you they are hydroids. I've had a patch of them in this system on a rock since day one, so that would probably explain it. Thanks for the input guys Quote Link to comment Share on other sites More sharing options...
undrtkr_00 Posted February 16, 2010 Share Posted February 16, 2010 This is my last big patch of them. I am glad there finely disappearing as there where getting out a hand at one point. Wow! I've never seen a big patch like that. Usually just a few here and there. Quote Link to comment Share on other sites More sharing options...
AquaticEngineer Posted February 16, 2010 Author Share Posted February 16, 2010 Yeah that is a bunch of them, my patch is only about silver dollar size. Quote Link to comment Share on other sites More sharing options...
Saltfinsax Posted February 16, 2010 Share Posted February 16, 2010 Hey hey, stop making fun of my Hydra's. They do have a green color when the T5 hit them just right. I still havent seen any real threat from them. Most hard corals seem to just grow right over them. Quote Link to comment Share on other sites More sharing options...
AquaticEngineer Posted February 17, 2010 Author Share Posted February 17, 2010 My hydnophora tends to keep my hydroids at bay lol Quote Link to comment Share on other sites More sharing options...
undrtkr_00 Posted February 17, 2010 Share Posted February 17, 2010 Hey hey' date=' stop making fun of my Hydra's. [/quote'] Nanner nanner nanner :p Quote Link to comment Share on other sites More sharing options...
Barelycuda Posted February 19, 2010 Share Posted February 19, 2010 I have taken some of them and had them grow to a size larger than a dime before. If I can find some pics I'll post it. Quote Link to comment Share on other sites More sharing options...
jgf86123 Posted February 19, 2010 Share Posted February 19, 2010 Hey hey' date=' stop making fun of my Hydra's. They do have a green color when the T5 hit them just right. I still havent seen any real threat from them. Most hard corals seem to just grow right over them.[/quote'] stick a piece of your hydnophora next to em an they'll go away real quick like LOL Quote Link to comment Share on other sites More sharing options...
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