

I’ve read/ understood that any minerals are a big problem for these plants, and I bet the leca provide enough minerals to cause issues. I’d repot asap into a peat/ horticultural sand mix and hope they bounce back, but do more research to confirm my thought process.
That’s fair, I hadn’t even heard of it till I came across this post: https://mander.xyz/post/28051700
It’s possible that even though you washed it, the leca are “leeching” minerals. I totally agree on the pumice thing, in theory they should both work. But I don’t know if that works out in practice, for instance horticultural sand is also branded as “inert” media but is absolutely safe for carnivores as well as pumice. Either way, best of luck figuring out what’s going on. That’s pretty frustrating, I’ve certainly killed some drosera and not known why.