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Old 10-30-2006, 12:26 AM   #1
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Yellow Clown Goby no color?

ok, normally the light schedule goes like this (not counting length of time, just order)

Night time, ALL lights off
Daylight in room
Room light comes on
Tank lights come on
---------------------------
Darkness outside
Tank lights go off
Room lights go off


Taht is normally how things go, but due to the time change and me being out of town this morning/afternoon, I came in after tank lights where off, so that is when the room lights came on, just for a few hours


ANYWAYS, my yellow clown goby has NO color, he is very pale whiteish color, is this typical when the lights go out and I have just never seen him before immediately after all the lights have been off?
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Old 10-30-2006, 01:54 AM   #2
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I think this is normal JD. When my lights come on my yellow tang is pale yellow and within an hour or two he is back to normal. What is he like a few hours later?
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Old 10-30-2006, 02:22 AM   #3
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I wont know what he is like until tomorrow morn, my rom lights are already off again, only on long enough to set my laptop back up.

this is what I hoped, one of my FW fish, my african buterfly, goes from black/brown coloration to a sickly looking white at night, but I figured i would just check.

Is it a defense mechanism, or just energy saving or what?
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Old 10-30-2006, 08:19 AM   #4
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I dont really know what causes it except I dont think it`s saving energy. I`ll have to research.
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Old 10-30-2006, 08:33 AM   #5
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Fish can lose color if stressed ..On the other hand they also can lose color while sleeping to blend a bit better into thier surroundings I believe that a female will go to a grey color right before mating (refrenced on wet web media) ... it is normal but he should color up a bit after
"waking" up ... Just keep an eye on him make sure he is eating and that the water perameters are up to par ..
Ammonia 0
NitrIte 0
NitrAte less than 20
Ph is stable 8.0- 8.4
Salanity is not swinging stable 1.023-1.025
and that your temps are stable not swinging more than 2* in 24 hours
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Old 10-30-2006, 09:01 AM   #6
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Quote:
Originally Posted by Sadielynn
it is normal but he should color up a bit after
"waking" up
If he`s doing this you should be OK
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Old 10-30-2006, 10:40 AM   #7
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I referenced this from several sources...
but here is what I found. When they are a "pair" the female generally turns grey , did they have more than one in a tank it is possible that she was "pairing" and getting ready to mate . This has been noted on many different gobies species. Through experience I have seen them lighten their color at night time which makes it hard to see them at night . This I believe to be a defence mechanism . I can not say for absolute that it is not something other than , but of all the gobies that I have had most would return color after the tank "woke" up generally about an 1 hour or so .Is the goby displaying any other behaviors such as "mouthing" . What other inhabitants do you house in the tank . Is there more than one goby in the tank ?
How long have you had him/her ?
My feeling is that you should be ok , keeping in mind that most gobies are wild caught with cyanide , and that when they eat it is not processed signs of this is a concaved belly , as an added measure you may wish to add 1 or 2 drops of selcon to the food , soaking it in it for about 5 minutes to boost immunity . I am going to say that he is stressed and night time is stressing as they are more vulnerable at that time. Give him/her time to settle in and you should see that once they are comfortable in their surroundings that they don't lose that much color but do color down a bit at night . Just keep him/her well fed and the parameters in check and he/she should come around ...All in all I think he should be fine ..
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Old 10-30-2006, 10:47 AM   #8
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Quote:
keeping in mind that most gobies are wild caught with cyanide
I'd like to see any reference to that notion if you can, otherwise we shouldn't say things like that. Sorry if I'm just uninformed, but I'd like to confirm that.

THX
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Old 10-30-2006, 10:55 AM   #9
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I think its pretty normal.

My clown goby goes almost clear in the dark. Brightens up right away.

My blue tang pales really fast when its lights out, and my YT pales a lot too, and has a wide white stripe down its side.
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Old 10-30-2006, 11:13 AM   #10
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My yellow tang has been doing it every nite for nine yrs now
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