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Old 11/10/2018, 08:36 PM   #1
rapitts
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Join Date: Feb 2010
Posts: 4
second fail attempt at raising the eggs

Hi All,

I'm attempting to raise the clown fish eggs from a pair of ocellaris clowns (7 years old).

However so far I've failed, I've got my green water and rotifers (within reason) ready but I've noticed only a few fry (4-5) actual emerge from the egg, at the moment the timing is roughly 7 days before the first emerge.

The clutch turns silvery so I normally then transport these to the hatching tank which is fed using the same tank water and mini pump (behind some filter mesh) however I'm stuck trying to resolve why the complete clutch doesnt emerge.

The pipe feeding the hatching tank is gravity fed so I did aim this over the eggs to attempt to replicate the male clownfish.

I did leave a small light on overnight so prehaps this is playing a factor or perhaps the eggs aren't strong enough to breakout?


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Old 11/10/2018, 09:22 PM   #2
Uncle99
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Location: Ontario, Canada
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The flow over the eggs must be gentle but changing.
The fish "fan" the eggs so not a constant flow.
Eggs only hatch in the complete darkness.

I found it easier to hatch in a separate tank but with parents, they take the best care.
The tank has a plastic wall full of 1/8" holes. Eggs and parents on the top half of the tank.
The bottom half is the safe area for fry.

When eyes silver, lights out, I shine a flashlight in the bottom half for 4 hours, then turn it out.
I repeat each night till hatched. After a hatch, Once light returns hatching stops.

Fry run and stay with the light, on the bottom safe half so parents can't have dinner.

As soon as, I carefully remove the fry to a black 5g for rearing...



Last edited by Uncle99; 11/10/2018 at 09:33 PM.
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Old Yesterday, 06:17 AM   #3
rapitts
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hmmm, maybe I move the parents next time however guess this will cause a bit of stress.

Going to increase the feeding in case the quality of the eggs isnt 100%.

Does all your fry hatch over two nights?


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Old Today, 02:06 PM   #4
Uncle99
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Yup, small first night, other 80% second


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