Cherry breeding hit the emergency brake?

I'd try a water change first. What's the temp? I think slightly higher temps increase activity and breeding, so that might be something to try as well.

What's your filter like? If you're using a power filter with nylons or sponge on the intake, perhaps there is a rip and they're getting sucked in. Curious. I had something similar happen with my pond snails, but the cherries that were in the tank were fine. Turned out it was planaria eating the snail eggs, but they don't eat shrimp or shrimplets at all. I'm betting that a water change would help immensely. There's more to remove than just nitrates, and there might be other substances that are building up without showing any other signs.
 
I did a water change a couple of days ago, the filter just stopped working (besides, I'd have seen berried females), and the only time I've gone through with a border-crossing order, I lost 120$, 20 corydoras hastatus died after being kept at the border and sent back (and lost), and CorysRUs refused any refunding. I'm not ordering from the US unless I'm IN the US at the time.

I'm really thinking I'll just wait and see. I might be driving up to the provincial fish club's annual auction, so maybe I can sell a hundred or two and stimulate them or something,
 
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