Clown Goby - how long till they spawn

chris melb · 03/18/2007, 02:46 AM

Just wondering how long it takes for an adult pair of clown gobys to spawn provided conditions and food are right. Is there a wait period, i.e time need for them to settle in a tank before they will spawn? Are there any indicators that they are about to spawn?

Regards

Chris

sebae09 · 03/18/2007, 06:30 PM

good topic , id actually like to know any info on breeding clown gobys, and do you know how to pair them up? sorry for hijacking the thread

Luis A M · 03/18/2007, 06:40 PM

Search the forum,(those of you who can

)
Seemingly they change sex,so any two will do.
Once they start spawning,they keep doing it every week or so.They both stay close to the nest,which hatch on the 6th night.The male takes care of the nest and the female gets plump the day before,with a short ovipositor extruded.
They spawn on a dead Acropora branch,if provided,otherwise on other available substrates.

sebae09 · 03/18/2007, 06:47 PM

awsome, thanks for the info.

chris melb · 03/18/2007, 07:46 PM

I have searched the forums, any two will do to form a pair, and they will spawn on most surfaces, but was just wondering Luis how long do they take before they spawn? im hoping i dont have to wait a year for them to start spawning, but they do have huge personalities, probably my fav fish, im feeding my CE, mysis and live BB.

Luis A M · 03/18/2007, 08:09 PM

I canÂ´t say,but guess some few months.Many times they are spawning and we donÂ´t notice it.See the pics and watch their behaviour.

chris melb · 03/18/2007, 08:53 PM

Will do thanks again for your help Luis, as i understand the male tends to the eggs, just like the clowns, any pre- spawning behvaiour? is it similar to clowns i.e flickering, im just wondering also is there a way to tell if they are carrying eggs, they are sort of semi-transperant fish, you would think that the 100 or so little eggs would be visible, in a clown goby. Did you manage to raise any clown gobys Luis? Ive read your posts, from memory Ediaz (RC name) has successfully raised them in the past. If i notice any behviour pre-spawing behaviour i will post my observations.

sebae09 · 03/19/2007, 11:02 AM

Im picking up 2 in a few days so do you mind if i post my observations aswell?

Luis A M · 03/19/2007, 12:05 PM

Male just stays close to the eggs.As explained before,femaleÂ´s abdomen looks distended the day before.I could not raise any,theyÂ´re very small and delicate.

GreshamH · 03/19/2007, 12:55 PM

Once started, they'll breed nearly to death. Like Luis, I had zero luck with growing out the fry

One thing, if there isn't any dead acro, they'll kill some to serve the purpose. They've killed around 20 branches in this aquarium thus far.

Luis A M · 03/19/2007, 01:11 PM

Awesome pics!

My pair spawns in the exact same spot every time,I imagined they all would restrain their "peeling"activity to theat limited area.

chris melb · 03/19/2007, 04:50 PM

That would be great sebae09, if you could post your obserbvations, ill do the same, try and add some pics were suitable. Looking forward to it.

damer · 03/19/2007, 08:06 PM

chris,

dallas on RTAW used to have a pair that spawned, maybe ask him a few things. he may even have it on his website.

chris melb · 03/19/2007, 08:53 PM

Hi Damer,

i did a search on RTAW nothing came up under "dallas" is this spelling correct, i searched by author, also do u have a link to his website

damer · 03/19/2007, 09:48 PM

sorry chris, Dr_DBW

here is a link for anyone interested. not a lot if info.

Spawning yellow coral gobies

ill respond to your PM on rtaw soon

his website is

ozreef

chris melb · 03/19/2007, 10:17 PM

Thanks Damer, thats great info, hope this is helpful to others also. Right now im in the fattening up stage of keeping these little guys, buying them straight from LFS is a bit of worry, they need special care as they are not used to eating prepared foods, and take some time to adjust to captivity, ive heard of them not eating for upto a month or so. Ive been able to feed mine on live brine napuli, and now am starting to introduce CE to their diet. they are very thin with sunken stomachs.

For those of you who are interested in reading also found this by Henry C. Schultz III 'Lets Clown Around With More Gobies: The Gobiodon Species' 'Lets Clown Around With More Gobies: The Gobiodon Species'

ediaz · 03/20/2007, 09:47 AM

The way I pair mine , i get two of the smallest i can find and place them in a tank, they will ussually pair and will lay in few months.

Remove the spawning substrate to a larval tank the day or the hatch or a day early. Once they hatch add rotifers and greenwater, keep the water green for about 10 days. From day 4 and on change 20% of the water daily. Add enriched rotifers (with selco) twice a day.

Use a very brigh light over the tank, very bright.
Mine take artemia very late somethimes till day 25-30.

Ed

aomont · 03/20/2007, 11:15 AM

Which algae you use for the larvae ? Nanno ? Photoperiod 12L/12D or more light-time ?
Anderson.

ediaz · 03/20/2007, 11:21 AM

I use nano, i don't think it matters what you use.
14 hours beacuse thats how my room is set so I have time to do all, I dont think it matters also.

I leave a nite lite over the tank at night though.

Ed

chris melb · 03/20/2007, 04:59 PM

ediaz thankyou for your posts, very helpful and detailed, just a quick question, why do you emphasise the very bright light? is it just to concentrate the rots or for some other purpose.

Regards

Chris

ediaz · 03/21/2007, 09:33 AM

Gobies and dottybacks larvae are very attracted to light, if the ligh is not strong enoung they stay at the bottom of the tank and will not eat, a strong light keeps them close to the surface eating all day. I use 150 watts halogens for the dottybacks. Hatcheries that raise gobies use natural sunlight and even with the shadecloth they still get a lot of light.

Ed

Luis A M · 03/21/2007, 11:03 AM

Muy interesante,Ed!

Actually you seem to be the only one being able to raise clown gobies,must be Bill A school!

Chris,rots donÂ´t concentrate with light.

GreshamH · 03/21/2007, 11:47 AM

Some are Luis

(rotifers being attracted to light)

Luis A M · 03/21/2007, 01:40 PM

Quote:

Originally posted by GreshamH
Some are Luis (rotifers being attracted to light)

I heard Randy saying exactly that in a speech...

They are not,I wonder how you find that,may be rots gathering at the surface under poor oxygen/water movement conditions.
You mean some strains are phototropic?

GreshamH · 03/21/2007, 03:24 PM

Yes, some are phototropic

I highly doubt in our case there would be any lack of o2 in any part of the sytem

We pump a load of pure o2 into them to insure that. We test daily, so we know the saturation.

Water movement is a low boil, but nothing is stagnent.

When our lead scientist gets back from Japan, I'll get more specifics out of him re: this topic. He's far more experienced with this then I

I have played with lights and collection of rotifers though, so I do have some experience with them being phototropic.

03/18/2007, 02:46 AM	#1
chris melb Registered Member Join Date: Jun 2005 Location: Melbourne: Australia Posts: 120	Clown Goby - how long till they spawn Just wondering how long it takes for an adult pair of clown gobys to spawn provided conditions and food are right. Is there a wait period, i.e time need for them to settle in a tank before they will spawn? Are there any indicators that they are about to spawn? Regards Chris

03/18/2007, 06:40 PM	#3
Luis A M Premium Member Join Date: Dec 2003 Location: Buenos Aires,Argentina Posts: 1,652	Search the forum,(those of you who can ) Seemingly they change sex,so any two will do. Once they start spawning,they keep doing it every week or so.They both stay close to the nest,which hatch on the 6th night.The male takes care of the nest and the female gets plump the day before,with a short ovipositor extruded. They spawn on a dead Acropora branch,if provided,otherwise on other available substrates. __________________ Luis A M Current Tank Info: I keep about 40 tanks,for breeding and larval raising.Most are 10 gallons.

03/18/2007, 08:09 PM	#6
Luis A M Premium Member Join Date: Dec 2003 Location: Buenos Aires,Argentina Posts: 1,652	I canÂ´t say,but guess some few months.Many times they are spawning and we donÂ´t notice it.See the pics and watch their behaviour. __________________ Luis A M Current Tank Info: I keep about 40 tanks,for breeding and larval raising.Most are 10 gallons.

03/19/2007, 12:05 PM	#9
Luis A M Premium Member Join Date: Dec 2003 Location: Buenos Aires,Argentina Posts: 1,652	Male just stays close to the eggs.As explained before,femaleÂ´s abdomen looks distended the day before.I could not raise any,theyÂ´re very small and delicate. __________________ Luis A M Current Tank Info: I keep about 40 tanks,for breeding and larval raising.Most are 10 gallons.

03/19/2007, 12:55 PM	#10
GreshamH Premium Member Join Date: Nov 2002 Location: SF Bay Area, CA Posts: 8,809	Once started, they'll breed nearly to death. Like Luis, I had zero luck with growing out the fry One thing, if there isn't any dead acro, they'll kill some to serve the purpose. They've killed around 20 branches in this aquarium thus far. __________________ Gresham _______________________________ Feeding your reef...one polyp at a time

03/18/2007, 06:30 PM	#2
sebae09 Registered Member Join Date: Nov 2006 Location: lincolnton NC Posts: 59	good topic , id actually like to know any info on breeding clown gobys, and do you know how to pair them up? sorry for hijacking the thread

03/18/2007, 06:47 PM	#4
sebae09 Registered Member Join Date: Nov 2006 Location: lincolnton NC Posts: 59	awsome, thanks for the info.

03/18/2007, 07:46 PM	#5
chris melb Registered Member Join Date: Jun 2005 Location: Melbourne: Australia Posts: 120	I have searched the forums, any two will do to form a pair, and they will spawn on most surfaces, but was just wondering Luis how long do they take before they spawn? im hoping i dont have to wait a year for them to start spawning, but they do have huge personalities, probably my fav fish, im feeding my CE, mysis and live BB.

03/18/2007, 08:53 PM	#7
chris melb Registered Member Join Date: Jun 2005 Location: Melbourne: Australia Posts: 120	Will do thanks again for your help Luis, as i understand the male tends to the eggs, just like the clowns, any pre- spawning behvaiour? is it similar to clowns i.e flickering, im just wondering also is there a way to tell if they are carrying eggs, they are sort of semi-transperant fish, you would think that the 100 or so little eggs would be visible, in a clown goby. Did you manage to raise any clown gobys Luis? Ive read your posts, from memory Ediaz (RC name) has successfully raised them in the past. If i notice any behviour pre-spawing behaviour i will post my observations.

03/19/2007, 11:02 AM	#8
sebae09 Registered Member Join Date: Nov 2006 Location: lincolnton NC Posts: 59	Im picking up 2 in a few days so do you mind if i post my observations aswell?

03/19/2007, 01:11 PM	#11
Luis A M Premium Member Join Date: Dec 2003 Location: Buenos Aires,Argentina Posts: 1,652	Awesome pics! My pair spawns in the exact same spot every time,I imagined they all would restrain their "peeling"activity to theat limited area. __________________ Luis A M Current Tank Info: I keep about 40 tanks,for breeding and larval raising.Most are 10 gallons.

03/19/2007, 04:50 PM	#12
chris melb Registered Member Join Date: Jun 2005 Location: Melbourne: Australia Posts: 120	That would be great sebae09, if you could post your obserbvations, ill do the same, try and add some pics were suitable. Looking forward to it.

03/19/2007, 08:06 PM	#13
damer Registered Member Join Date: Feb 2003 Location: geelong, australia Posts: 103	chris, dallas on RTAW used to have a pair that spawned, maybe ask him a few things. he may even have it on his website.

03/19/2007, 08:53 PM	#14
chris melb Registered Member Join Date: Jun 2005 Location: Melbourne: Australia Posts: 120	Hi Damer, i did a search on RTAW nothing came up under "dallas" is this spelling correct, i searched by author, also do u have a link to his website

03/19/2007, 09:48 PM	#15
damer Registered Member Join Date: Feb 2003 Location: geelong, australia Posts: 103	sorry chris, Dr_DBW here is a link for anyone interested. not a lot if info. Spawning yellow coral gobies ill respond to your PM on rtaw soon his website is ozreef

03/19/2007, 10:17 PM	#16
chris melb Registered Member Join Date: Jun 2005 Location: Melbourne: Australia Posts: 120	Thanks Damer, thats great info, hope this is helpful to others also. Right now im in the fattening up stage of keeping these little guys, buying them straight from LFS is a bit of worry, they need special care as they are not used to eating prepared foods, and take some time to adjust to captivity, ive heard of them not eating for upto a month or so. Ive been able to feed mine on live brine napuli, and now am starting to introduce CE to their diet. they are very thin with sunken stomachs. For those of you who are interested in reading also found this by Henry C. Schultz III 'Lets Clown Around With More Gobies: The Gobiodon Species' 'Lets Clown Around With More Gobies: The Gobiodon Species'

03/20/2007, 09:47 AM	#17
ediaz Registered Member Join Date: Jun 2004 Location: Grand Rapids MI Posts: 1,139	The way I pair mine , i get two of the smallest i can find and place them in a tank, they will ussually pair and will lay in few months. Remove the spawning substrate to a larval tank the day or the hatch or a day early. Once they hatch add rotifers and greenwater, keep the water green for about 10 days. From day 4 and on change 20% of the water daily. Add enriched rotifers (with selco) twice a day. Use a very brigh light over the tank, very bright. Mine take artemia very late somethimes till day 25-30. Ed __________________ The Ediaz I'll just leave it blank

03/20/2007, 11:15 AM	#18
aomont Registered Member Join Date: Apr 2006 Location: Rio de Janeiro, Brazil Posts: 410	Which algae you use for the larvae ? Nanno ? Photoperiod 12L/12D or more light-time ? Anderson. __________________ "Posso não saber de nada mas suspeito de muita coisa..."

03/20/2007, 11:21 AM	#19
ediaz Registered Member Join Date: Jun 2004 Location: Grand Rapids MI Posts: 1,139	I use nano, i don't think it matters what you use. 14 hours beacuse thats how my room is set so I have time to do all, I dont think it matters also. I leave a nite lite over the tank at night though. Ed

03/20/2007, 04:59 PM	#20
chris melb Registered Member Join Date: Jun 2005 Location: Melbourne: Australia Posts: 120	ediaz thankyou for your posts, very helpful and detailed, just a quick question, why do you emphasise the very bright light? is it just to concentrate the rots or for some other purpose. Regards Chris

03/21/2007, 09:33 AM	#21
ediaz Registered Member Join Date: Jun 2004 Location: Grand Rapids MI Posts: 1,139	Gobies and dottybacks larvae are very attracted to light, if the ligh is not strong enoung they stay at the bottom of the tank and will not eat, a strong light keeps them close to the surface eating all day. I use 150 watts halogens for the dottybacks. Hatcheries that raise gobies use natural sunlight and even with the shadecloth they still get a lot of light. Ed

03/21/2007, 11:03 AM	#22
Luis A M Premium Member Join Date: Dec 2003 Location: Buenos Aires,Argentina Posts: 1,652	Muy interesante,Ed! Actually you seem to be the only one being able to raise clown gobies,must be Bill A school! Chris,rots donÂ´t concentrate with light. __________________ Luis A M Current Tank Info: I keep about 40 tanks,for breeding and larval raising.Most are 10 gallons.

03/21/2007, 11:47 AM	#23
GreshamH Premium Member Join Date: Nov 2002 Location: SF Bay Area, CA Posts: 8,809	Some are Luis (rotifers being attracted to light) __________________ Gresham _______________________________ Feeding your reef...one polyp at a time

03/21/2007, 03:24 PM	#25
GreshamH Premium Member Join Date: Nov 2002 Location: SF Bay Area, CA Posts: 8,809	Yes, some are phototropic I highly doubt in our case there would be any lack of o2 in any part of the sytem We pump a load of pure o2 into them to insure that. We test daily, so we know the saturation. Water movement is a low boil, but nothing is stagnent. When our lead scientist gets back from Japan, I'll get more specifics out of him re: this topic. He's far more experienced with this then I I have played with lights and collection of rotifers though, so I do have some experience with them being phototropic. __________________ Gresham _______________________________ Feeding your reef...one polyp at a time