Eggs not hatching

[shane reef]

So my snowoynx had laid a nice clutch of eggs last Saturday evening. Starting last Friday morning I could see the silver eyes. I started that night by turning off pumps for over 2 hrs to try and collect the fry, none hatched. Saturday morning looked like some had hatched there were not as many silver eyes as the previous morning. So again I tried turning off pumps for over 2 hrs shined my light in corner of the tank and nothing again. And pretty much the same for Sunday night. This morning I can still ser a handful of eggs with silver eyes, everything else is gone. What is going on why aren't they hatching? Am I not leaving light off long enough? Are they not hatching and are they dying before they do hatch?

 

[ernieq]

When it's hatch night, the room has to be totally dark in my experience, so if there's a night light of some sort in the room or lights bleeds into the room, they will not hatch until it is totally dark. In may case, lights went out at 9 p.m. Usually I would just wait 3 to 4 hours, took a look to see if there were any larvae swimming around, and if there were, I would leave a small led flashlight in a corner pointing down through the glass canopy for the larvae to gather there for about 15 minutes.

 

[Jaypilot]

Yup just as posted above, it must be completely dark. I think what is happening in your case is that you are trying to watch them hatch with a flash light and that will only delay the process. Then when you get tired of watching and ho to bed some are hatching.

So I would do what Ernie said above. When the lights go put on hatch night turn off the pumps and everything in the room for a few hours and the check for babies. If nothing then turn on the pumps and try again the next night.