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Blue Zoa BUGS!!! 8/20/07
Hey crew,
Thanks in advance for all the info already given and provided to us all.
Your site/info has been a great resource for me and am sure for others.
I am wondering if you could ID these bugs I recently found on my blue
zoas. These bugs seem to make the polyps close randomly in groups.
Getting a great picture if these bugs has been tough without sucking or
attempting to suck them out with a baster. Less than a millimeter in
length, clear, has 2 antennae coming from its head, has multiple legs
cant tell home many because its so small. The Zoas and the rock are
teaming with these bugs. I have attached a picture to help, don't know
how much help it might be. I can always suck one out with a baster in
order to get a better picture if needed. Thanks for all the help for
giving me a good understanding of what is needed in order to take care
of and maintain a marine Aquarium.
<Mmm... well... there are a few approaches to control here... with the
usual "range of desirability"... biological, physical, chemical last...
You can/could interpolate these by a cursory read here:
http://www.wetwebmedia.com/swmitefaqs.htm
Do you have another "isolation" tank that you might use to eradicate the
bulk of these pests? Bob Fenner.
Re: Blue Zoa BUGS!!! 8/20/07
After reading am not to concerned about these bugs just the number
of them and the Zoas not opening or only opening for a shirt time. Well,
I have am still working on the tanks filters, its an all glass not
drilled tank and invested in an overflow with Aqualifter pump, I had
plans to have a isolation tank plumbed inline back to sump for an
isolation tank. At the moment it is not set up. I do have a 10gal tank
sitting around. Thank you.
<I do think you're wise to ignore these for now. Bob Fenner> |
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Re: Blue Zoa
BUGS!!! 8/22/07
I could have told you that Bob! Joking aside I should have mentioned
I did move them to a quarantine tank anyways, despite the lack of
concern. Thanks to you all wise one, really thank you. Am i better off
to leave them in quarantine till they are gone or population diminishes?
Also since moving to quarantine I have been able to monitor the zoas
more closely. There are a few white worms with black spots maybe reverse
black with white spots curled up on the sides of a couple closed zoas,
probably more on the underside of opened zoas. also 3 maybe 4 long red
stringy worms, almost looks like a piece of red hair flopping about over
the sand, coming from under the rock which the zoas are growing on. My
question now is what would be better for the zoas. From my understanding
2 ways would either be Interceptor or freshwater dip in RO water,
adjusted ph and temp of coarse. With addition to these new findings of
critters which is better to elevate the problem,
interceptor or freshwater RO dip?
<Mmm, FW... pH-adjusted... but... I see in your next email that these
may be "something else"... Pycnogonids... do they have eight apparent
legs to your eyes as well? If anything, I'd go with a purposeful
predator here (Lined Wrasse sp. likely)... or just tolerate them if they
were mine...>
Sounds like ro dip would be better but I am worried of specimen loss,
and I am wandering if the zoas will be able to handle the additional
stress levels from a freshwater dip. Thank you wise one, Bob, for making
me reconsider my previous statements/actions/concern.
<Mmmm, BobF>Re: Blue Zoa
BUGS!!! 8/22/07
Once I put it in Quarantine I was able to get better photos, I have
attached 2 pics, to show the infestation and 1 showing the actual "bug"
itself which turns out looks more like a grasshopper, a very small
grasshopper.
<... or a Sea Spider... Please read here:
http://www.wetwebmedia.com/pycnogonids.htm
and the Related FAQs file linked above. Bob Fenner>
Re: Blue Zoa BUGS!!! 8/23/07
Thanks for the quick reply once again. Figured you were tired of
hearing from me, the unwise. Well I see eight legs very hard to
determine but definitely looks like there are 8 legs. I noticed when I
first put the zoas in my main tank my Pseudochromis fridmani (spelling?)
was picking at the rock, not to sure it was eating anything or not. If I
were to get a 6line or a line wrasse I'll run into compatibility issues
correct?
<Mmm... in a tank this size, I give you good odds of not having real
trouble here>
75gal 110lbs live rock. I fear with me having the Pseudochromis fridmani
(was my first fish), already has his territory staked out pretty much
all the rock on the bottom half) that he will go after a lined wrasse if
introduced into my system. I notice with some research to use caution
when putting these 2 species together, as long as they don't resemble
each other, or need to be introduced at the same time?
<The Lined Wrasses are pretty sharp, and fast!>
Combination of both? Or just plain luck or am just stupid for even
trying to put these species together in the same tank. I would
just as easily return the Pseudochromis fridmani (AND THE TWO 3 STRIPED
DAMSELS!!!!) but I can not. Girlfriend picked them out for our first
fish so kinda stuck with them till he dies (hmm.... gives me an idea,
j/k). Thank you Bob you have been of great help.
-Jay
<Welcome Jay. BobF> |
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Zoanthid Spider (Pycnogonid sp.) bite!!! HELP 5/23/07
<Hi tasty
human! Mich here!>
I got bit by one of these things on my finger.
<Ouch!>
Am I in danger?
<Are you standing in front of a bus? Holding a lit stick of
dynamite? Perhaps eating something with trans fat?>
Are they poisonous?
<No. They are not poisonous.
More here:
http://www.wetwebmedia.com/pycnogonids.htm
http://www.wetwebmedia.com/seaspiderfaqs.htm >
I got bit about 4 hours ago and it hurt a bit, but I am not in any pain
right now. It looks a bit swelled up and red but nothing major.
<I would keep and eye on it. If it gets worse consult a doctor. I
think your biggest issue is the possibility of infection. If you see a
red line going up your hand don't waste any time and seek medical
attention, can be a sign of septicemia which can be quite
serious. Perhaps a little ice might help reduce the swelling.>
[IMG]http://www.zoaid.com/gallery2/main.php?g2_view=core.DownloadItem&g2_itemI
d=398&g2_serialNumber=2[/IMG]
<Nice picture!>
Please let me know any information you guys can.
<Hope this helps and you are feeling better soon. Mich>
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Re:
Zoanthid Spider (Pycnogonid sp.) bite!!! HELP 5/23/07
<Hello again tasty human, Mich here!>
Thanks for your help.
<You're welcome! Happy to help!>
I am glad to hear I'm ok lol.
<Me too! But do keep an eye on it. There are a lot of nasty infections
you can be exposed to in marine systems.>
Have you ever heard of anyone getting bit by them before?
<I personally have not, but I do not have much experience with these
creatures either. Mich> |
Re: What Could This Be? A Pycnogonid...Maybe - 04/25/07
Eric and all,
<<Hello Jan>>
My husband and I looked, and it does not have the "emaciated" look of the sea
spider.
<<I see...I seem to recall there are some that do appear "robust". Perhaps some
further searching...>>
Our rock nester has thick legs, very hairy fur like, thick body, pointy claws at
the end, yuck. Is there any other "look see" or what it might be? Any thoughts
and many thanks for even venturing out there with ideas?
<<I still think it could be a Pycnogonid, but if not, maybe it is a species of
crab. There are some small reef dwelling species referred to as "spider" crabs
for obvious reasons...including the fuzzy appearance. A picture would help if
you can provide a sharp close-up photo (no more than a few KB in size
please). Eric Russell>>
Zoanthid spiders, Pycnogonids, MgCl2 dipping... 4/18/07
Hi,
I know you have talked about these before, but I couldn't find the answer
to my question on the previous forum.
I am a newbie and did not know that I should QT corals (I know better
now). Somehow, somewhere, I have picked up Zoanthid spiders.
<Pycnogonids... some of which do feed on Zoanthids... some are "just" space
commensals...>
So far, I have FW dipped the affected zoos, dipped them with coral dip
<... what is this? Oh, the Kent Product... mainly I2 cpd.s>
and QT'ed them. They have been in QT for about a month. I didn't see anything
for the last month, but recently began to notice that some of the zoos looked
puny and were drooping. Tonight about 2 hours after lights out, I turned on the
lights and saw a baby spider. I immediately FW dipped the zoo and got
another. I dipped all the zoos in the QT and got a couple more. I have had
about enough. This is so disappointing. I finally just tossed the affected
zoos tonight.
<?!>
I am writing because I am worried about the zoos that dipped clean on the
first go round. I left these guys in my DT and they seem to be doing fine.
I plan on doing another FW/coral dip tonight on the ones that are not attached
to rocks and see what happens.
If I find more spiders, what should I do?
<Remove, and dip (in a 1.024 or so spg MgCl2 (Magnesium Chloride) solution (made
with clean freshwater...) for half a minute... place all in a new, non-infested
system...>
I have several colonies that
are attached to base rocks in my tank. If I find spiders in some of the
colonies should I take out the base rock and dip/QT it too?
<You could... but starving these Pycnogonids out will do the same... just leave
them, the existing system w/o food for a month or more...>
I probably weighs about 20#.
I hope you all can help me decide what to do. I love this hobby but am
getting very close to bailing because of the disappointments. I also received
some flatworm infested Chaeto from my trusted LFS. Now my refugium has a few of
them. What should I do?
<Read... on WWM re...>
Will a sixline wrasse help at all? Will they eat these things?
Thanks,
Miri
<Read on my friend, read on. Bob Fenner>
Sea Spider? - 06/05/06
I have a quick ID question for you guys.<<and gals>>
Let’s see if I can give as much information as I can.
<<Okay>>
I'm not sure it will be enough because I can't get a good pic.
<<Mmm...>>
I found this thing on my zoas tonight after the lights in the tank went out. I
have 4 zoas colonies and I found two organisms on the same colony. The rest
seem to be clear of them. These things are about 5mm in diameter, have 8 legs,
are a brownish clear color and have radial symmetry. I would normally say some
kind of micro sea star, but I'm not sure. One was wrapped around the stalk of
the zoas, seeming to squeeze it - which makes me think some kind of parasite. I
pulled it off and it was NOT happy - all writhing around. I found another of
the same colony latched onto a rock. They are not pretty, very insect looking.
<<Possibly a sea spider (Anoplodactylus erectus), a carnivorous marine
arthropod. Try a Google search re and see what you think>>
I was just wondering what it was, if it’s harmful, and what I should do about
it.
<<If indeed a sea spider it is likely harmful/should be removed>> <Mmm... don't
appear that deleterious in the wild... RMF>
Thanks so much,
Jennifer K.
<<Hope that helps. Regards, EricR>>
Sea Spider? II - 06/06/06
EricR,
<<Hello Jenny>>
That absolutely looks like what it is!
<<Ah! A successful ID then>>
All I can say is yuck!
<<Ha!...they are kinda creepy looking...>>
I read around and it seems that they may feed on corals and other inverts.
<<Is what I know of them as well...though must say, I believe Bob does not
consider them as harmful as we might think>>
I've had this tank established for almost two years and w/o additions for over 4
months. Where the heck did it come from?
<<Mmm...likely been there all along, or were spawned from the live rock>>
Should I just manually remove them if I see anymore?
<<Tis up to you...maybe try observing their behavior...removing if you notice a
deleterious effect on your corals>>
I only found two that one night, no other time..... I do not want anything
detrimental in my tank! Help!
<<Time for some close observation>>
Thanks so much,
Jenny
<<Happy to assist. EricR>>
Hi Bob--long time, no see!! Sea Spiders and Euhirudineans
Hi Bob,
<Bonnie! Long time indeed>
Just found your web site with some nice photos of pycnogonids. Check out our website for more info. on these critters!
Bonnie
<Neat! And a forum as well... will share, post. Bob Fenner>
Dr. Bonnie A. Bain
Pycnogonid Systematics and Evolution
Department of Biological Sciences
Northern Arizona University
Flagstaff, AZ 86011
Pycnogonids - Sea spiders 5/7/04
Hello again crew,
<howdy>
Last night I was cleaning out my canister filter. I usually go nuts
about collecting all the little critters that are sucked up so they can be
placed back into the system. Normally they are limited to Amphipods,
medusa worms, and the occasional bristle worm. I came across this
little critter, and became immediately intrigued. He is about 1/8-1/4
inch in length, and can only be described as looking like a stick figure.
<clearly looks like a Pycnogonid sea spider. They are generally difficult to
keep alive and tend to be carnivorous. If its living for any length of time in
your system, its preying on something: sea spiders eating Aiptasia anemones and
hydroids make regular appearances>
He is quite active, and I am keeping him in isolation until I can get some sort
of a positive ID. I am attaching a few photos of him in various
positions, and with various white balance settings. I know the
pictures may be a bit fuzzy, but it shouldn't turn out too bad. Thanks
in advance for all the help!
Steve
<fascinating creatures... do some keyword searches with this name and see
what you can find. Best regards, Anthony>
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