Help, 90% Clownfish Fry die at the first day. (within 1-2DPH)

[Jiin]

Hey guys,
I have a pair of ocellaris clownfishes laying eggs regularly.
These days, I'm trying to breeding like below,

My problem is most of the fry die within 1, 2days.​

150 fry out of 180 dies with in 24 hours. (photo like below)
I don't get the situation at all.
Can you define the cause of this tragedy?

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What I'm doing is like this,​

- Tank : Coral Pro Salt Container (approx. 22L)
- Heat : 27±0.2℃ (with controller, and no cover on the heater)
- Air : like the movie clip like below.
- Light : 3W lights, allowed sunshine comes in day time.
- Water : I used the seawater from the hatching tank.
- Capturing : Vossen trap



Movie is +12Hr, so 50% are still alive.

 

[joekidwell]

I've been having the 24 hour death syndrome also. My next clutch I won't use my trap, I'm going to cover the light on the heater and make more air under the heater to keep them away. Hopefully this will solve my problems.

 

[sabeypets]

Some of the most common causes are insufficient parent diet, water quality, or collection method. Salts with elevated elements are not preferred.

 

[D E N I N O]

I think your light is very bright, it might be worth using some black electrical tape and blocking some of the LED's.