Sorry to disagree, but I lost several Amano shrimp when I had 'technical difficulties' the first time I tried charging a H.O.T. Magnum filter with D.E. Within hours I saw them going thru convulsive fits and then they died
. I had five of them. It's possible it's entirely coincidental, but I'd be very reluctant to allow any of the powder to escape into a system housing inverts again.
I waited more than six months before attempting Amanos again. My second and third batches are now doing fine for me. I'm using the same water source and dosing regimes now as when I lost the first batch. So I still think it was the D.E.
My fish and snails appeared unaffected by the accidental leakage I caused.