clown goby egg experience (raising fry)

KurtsReef

KurtsReef

Premium Member
Anyone ever tried? My yellow clown gobies have spawned, did a search on the boards but came up with no threads on the subject.

If you tried and either were successful or not would like to hear what you did.

My immediate thoughts are to frag the piece of SPS they are on and then jury rig a nursery in the sump with some fine mesh netting. I don't mind feeding the fry but have never attempted such a thing so would not know how often to feed, would assume phyto and rotifers would work.

Anyway, just thinking out loud...it would be nice to give it a go.
 
Well, unless I find some guidance I will be fragging the piece with the eggs and attempting to keep it inside a mesh enclosure in a low flow area of the sump.

My sump is a 300g rubbermaid tub, so there is plenty of room. I will be keeping the top portion of the contraption I have yet to build out of the water preventing the urchins or peppermint shrimp from getting into it, will also make it wide enough the eggs are in the center out of reach.

Once they hatch, will feed rotifers/cyclopeaze mixture at least twice per day? :confused:

Need to do a google search on the subject
 
Guess I will document this here...

The eggs now have 'dots' in them, or is it little fish with two eyes now showing?

_KJS3632.jpg


_KJS3633-older%20yclowngobyeggs.jpg


Trying to decide when to move the eggs, think I will do it tomorrow. I have a nursery set up in the sump, its just one of those square net enclosures you can buy at any fish shop.
 
Yes, after looking at these more and the suggestion of someone they have been moved. I do have rotifers in the fridge need to start up a rotifer breeder.

So, they are moved a few more pics taken but need to charge the laptop.
 
Put them in here

_KJS3676.jpg


Couple more shots of the branch now that its fragged.

_KJS3649.jpg


this is a 100% crop of a hand held macro shot while holding the bowl with my other hand so not the sharpest image..., these things are very tiny but appear to be pretty far developed

_KJS3664.jpg


This is slightly larger than real life
_KJS3666.jpg
 
Nice pics!

I wouldn't worry so much about this spawn.

For the next one I would try and get your hands on some SS-rotifers the L-strain may work but you may or may not have as much success. Copepods would be good too. Small larvae thats why I'm saying this.

But try and get your hands on a round black tub for a larval rearing tank and you could probably plumb it to your sump that way you won't have to worry about water quality differences. Put a stand pipe in the middle of the tub and put some 53 micron mesh over the top so food and larvae stay in. And get a pump but throttle it back to a drip through the larval tank and use a slow bubble rate with air as your main current you can rubberband this to the stand pipe so as to make a tumbling flow.

I would use the greenwater method which is where you keep the water in the larval tank green via phytoplankton (live or concentrated) and this feeds the food source for the baby fish. (keeps them enriched)

While waiting for the eggs to hatch, like once you move them to the larval tank you will have to run some bubbles or something over them to simulate the parents moving over the eggs so that you will get better hatch rates but this is easy cuz they spawn on coral so you just frag it.

Then you will have a little larval rearing station for your gobies or from your avatar looks like you have clowns, if they ever spawn your all set.

Good Luck.
 
Don't know if anyone has said this ,but that net breeder could hurt your fry. They may get stuck in mesh and cause damage, I wouldn't chance it.
 
Appreciate the comments, I will try to come up with something other than the fry net they are in. I just removed a refugium from my system may hook up a new one on a smaller scale to put them in.
 
The fry are too fragile for a refugium. The goby fry will be PELAGIC like most fry and live in the water column til they SETTLE. In a refugium (a benthic environment) they will get caught up in plants and what not and preyed on by organism's living on the bottom.

An ideal rearing environment would have blacked out sides to make food more visible to the babies, no corners to help with flow and keep larvae out of them (if there are no corners they don't get stuck in them), and low flow but not no flow. Ideally the larvae would have the food brought to them instead of having to search for it. You want the food to be moving and they can sit there and pick it out but if its too high they will get swept away.
 
Thanks Morrissey,

With the exception of the black sides that is pretty much what I have set up. If these eggs fail will come up with something similar that has black sides.

They were still alive at 7pm last night, did not check them this morning.

There is a very low flow of water and nothing except the frag the eggs are on in the tank they are in.
 
But it sounds like you have a rectangular tank... it should be round. The larvae will be pinned up on the sides or corners especially if its not black because they are attracted to light. This could result in fry with smugged noses.

I would suggest getting Wittenrich's book on breeding marine fish. It will clear up many things and has pictures which for us lazy people are very helpful.
 
The tank is rectangular...

I think this batch is dead, should have left them in the main tank with the parents and see if any made it.

See the 'cover'

_KJS3814.jpg


I guess it could be a shadow from the flash, plan on taking a couple more shots after the lights go on down there.

_KJS3804.jpg


Will be picking up a book for the next time.
 
If you would have left them they would have died too so dont stress about it. If you want to try raising them I would suggest Wittenrich's book.

It just takes a little practice and learning anyone can do it and why not since more fish will be captive bred instead of taken from the ocean's.

Keep trying.
 
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