Found another, up to 13 wrigglers, and there are seven eggs that still look good and like they might hatch
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Will check those eggs again in the morning.
I couldn't get photos of them I'm afraid
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They're so tiny and almost invisible, and most went and hid under the bits of IAL I'd put into their pot. I'll try again tomorrow when I do their water change and have better lighting than at 10pm tonight
I can't believe so many hatched! I know 13 out of 237 doesn't sound a lot, but it's a lot more than I'd dared hope for!