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Old 03/05/2008, 08:05 AM   #1
JENnKerry
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Hitchhiker on LR in my new 10..?

I dont normally get hitchhikers, and when I do, lucky me ends up with Aiptasia :P I saw this guy the other day, along with about 4-5 others that are the same. This one is a little larger and seemed to plump now that I have the PC's on it.

I got some LR from a LFS, Im pretty sure he got it from someone who was breaking their tank down. Its already been drilled with some tube fittings inserted for aquascaping Im assuming. So whatever it is, came from someone elses tank.

To me, it either looks like a type of anemone or mushroom/ric of some sort. Anyone got an idea?
[IMG][/IMG]


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Old 03/05/2008, 03:13 PM   #2
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they are called mejano or majano......they are a nuissance more than you can imagine. they spread quickly and can sting neighboring coral.....I'm an expert (lol) bc I have many and looking for a solution.


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Old 03/05/2008, 03:35 PM   #3
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Majano, not as bad as aiptasia but still considered a pest. Get some joes juice


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Old 03/05/2008, 04:10 PM   #4
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I'm a lot less sure than these guys about the thing's status. It could be a majano, but then, it might not.

You could try breaking off the bit of rock that its on and isolating it on the sandbed. Majanos will wander all over rock, but they won't cross sand. If it's a majano, this will keep it quarantined. If it's not a majano, then you'll get to watch it grow. You might have something cool.


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Old 03/05/2008, 04:15 PM   #5
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sorta looks like a little ricordia to me... keep an eye on it.


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Old 03/05/2008, 04:23 PM   #6
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I have Joe's on hand just incase, I will move that rock down to the sandbed just incase. I dont want anymore problems then I can handle. THANKFULLY its only a 10 gallon! Small tank, easily contained. I wouldnt know what to do if it took off in my 125! Jeez


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Old 03/05/2008, 04:24 PM   #7
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I'm not sold on Majano either. I've had baby yumas look an awful lot like that. Further, the white tips are interesting. If they were a little more prominent (and maybe they are, but it's hard to tell from this angle), this might be a corynactis or psuedocorynactis, which are pretty common cryptic hitch hikers.

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Old 03/05/2008, 04:49 PM   #8
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Quote:
Originally posted by Anemone
this might be a corynactis or psuedocorynactis, which are pretty common cryptic hitch hikers.

Kevin
X2.


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Old 03/05/2008, 06:16 PM   #9
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Well, if its not a yuma and it is a pest, will Joes work on them or do I need to take more drastic measures?


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Old 03/05/2008, 06:35 PM   #10
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My vote is ricordia.


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Old 03/06/2008, 10:50 AM   #11
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Im crossing my fingers for Ricordia! I had a briopsis, hair algae and cyano bloom in the tank. I think its because I originally housed Seahorses in there and the nutrients got too high. I totally took care of it today with a large water change and I scrubbed the rocks outside the tank.

I took some advice and I placed the rock at the bottom of the tank so whatever it is (good or bad) cant jump to larger rocks.
When they open fully, I will take another picture.


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Old 03/06/2008, 03:02 PM   #12
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Quote:
Originally posted by Anemone
this might be a corynactis or psuedocorynactis, which are pretty common cryptic hitch hikers.

Kevin
110% this is corynactis, no question at all. Get rid of them, then search ALL your rock to get rid of the rest. These guys will take over your tank in no time. I'm fighting them in my 10 now, and ime they're twice as bad as aiptasia.


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Old 03/06/2008, 04:00 PM   #13
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Quote:
Originally posted by BigRedSpecial
110% this is corynactis, no question at all. Get rid of them, then search ALL your rock to get rid of the rest. These guys will take over your tank in no time. I'm fighting them in my 10 now, and ime they're twice as bad as aiptasia.
While I'm not convinced they're Pseudo- or Corynactis, if they are, I thought both genera were azooxanthellate...so it seems unlikely they would take over your tank. Are you sure you have the same thing, Big Red?

-R


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Old 03/06/2008, 05:58 PM   #14
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Well, I checked my rocks out when I was cleaning them off, I only have 1 small rock with 3 on it. I thought there was more, but only 3. They are no larger then the size of a pea right now. But I have that rock placed on the sand, away from neighboring corals and rocks. Im caught in the middle of BAD and GOOD right now, Im not sure what to think these guys are


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Old 03/06/2008, 06:11 PM   #15
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I've had the little corynactis anemones in the past (aka strawberry or ball anemone) and they were no problem. Never heard of anyone with problems with them. I never worried about 'em.


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Old 03/06/2008, 06:26 PM   #16
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Quote:
Originally posted by lancer99
While I'm not convinced they're Pseudo- or Corynactis, if they are, I thought both genera were azooxanthellate...so it seems unlikely they would take over your tank. Are you sure you have the same thing, Big Red?

-R
yep, once again, 100% sure. Also known Orange Ball Anemone, Strawberry Anemone, and Club Tipped Anemone. There have been many threads on here discussing them. More pics of corynactis:





Links to Corynactis/pseudocorynactis:

Advanced aquarist article by Sprung(scroll down to the bottom)


RC Discussion from a couple weeks back



Need more proof?


Through the discussions we've had here on RC, it seems a lot of people don't have any trouble with them spreading, and I do know that a friend of mine has a couple but they don't spread(despite VERY heavy feedings).

In my tank, they are a total plague; once a month I'll go 'nem hunting with Joe's Juice. I typically kill 4 or 5 aiptasia, and 15-20 corynactis. They're that bad in my tank.

On the plus side, they are easy to kill, and from what I've seen they haven't hurt any of my corals (but they regularly kill Colinista snails).


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Old 03/06/2008, 08:50 PM   #17
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Maybe they are bad, but they're really pretty


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Old 03/06/2008, 09:05 PM   #18
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That they are, which makes it that more frustrating to me!


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Old 03/06/2008, 09:09 PM   #19
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They are kinda pretty, but I cant have that mess! Since they divide, I will keep this rock totally AWAY from other neighboring rocks. I also want to keep an eye on how they develope. I will most likely hit them with Joes since this will be a straight up softie tank..(few LPS, I love them, I cant help it!)
BUT, what Im thinking is, if Im not feeding the tank, and only dosing with my Cal/Alk, I dont think they stand much of a chance gaining strength.
If I introduce high amounts of nutrients, then yea, I would say they will run rampid. But no food, no growth, unless they get most nutrients lost from absorbing light like "Wanted" anemonies.


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Old 03/06/2008, 09:17 PM   #20
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the ones I have in my tank don't just reproduce by division, they actually send out babies so they pop up in random places, so putting the rock on the sand most likely won't stop them.

I understand your desire to watch them develop, but keep in mind that that is exactly how I got them.. a single hitchhiker, that I was fully aware of, but wanted to "keep an eye on how they develop".

Of course, you could be one of the lucky ones that get to keep one without it spreading.


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Old 03/06/2008, 09:35 PM   #21
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I think Bigred is the first one I've heard of having a problem with these guys.


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Old 03/07/2008, 06:23 AM   #22
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Quote:
Originally posted by Salamander
I think Bigred is the first one I've heard of having a problem with these guys.
I know a few people on here have reported having trouble with them, but you're right, more people say they're harmless. It's just that with all the trouble I've had/having, I cant help but warn people, just in case


Of course, the other possibility is that what I have is Pseudocorynactis (the fish killer that grows to 6"); I kill them before they get big enough to tell. This may very well be the case, since everything I've read on corynactis states they multiply solely by division, whereby what I have only multiplies by sending out offspring and is non-colonial.


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Old 03/07/2008, 10:32 AM   #23
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Quote:
Originally posted by Salamander
I think Bigred is the first one I've heard of having a problem with these guys.
Ditto.

I've had them in my anemone tank for 14 years without any issues. They have spread, but only in shaded areas, and have never been a problem to any other tank inhabitant (even before my tank was anemone-only).

I have a few in my 80 gallon mixed reef (set up for 10 years) and again no real issues (and these haven't particularly spread).

FWIW,
Kevin


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Old 03/07/2008, 11:10 AM   #24
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So, whats the universal vote? Kill or live and let live?


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Old 03/07/2008, 11:50 AM   #25
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Post another pic.


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