[mollyyymo]

Have you been siphoning the tank? I wonder if some of the leftover egg yolk from before might have fouled the water. Do you have a way to test for ammonia?

 

[mollyyymo]

I just checked ammonia ans nitrite last night.
Ammonia is 0.5ppm and nitrite is too high 8ppm before water change. I am regularly doing 50-70% water exchange and I think the mortality has reduced a little bit but then I also haven't fed them last night. I wonder if it is the bbs.
And yes, I have been siphoning the solid waste everyday but some of it will never come out

Yeah, ammonia and nitrite is the culprit then. ☹

You might be overfeeding or there might be unmatched eggs/eggshells decaying. How long do you leave your hatchery to settle after you turn off the air? I find it needs a good 5-7 minutes to separate the shrimp from all the junk.

It's OK if some of the waste doesn't come out when siphoning. It's a constant battle but conditions need not be totally sterile. Hopefully these water changes will help a lot. Fingers crossed.🤞

How many fry are left?