Yes, many times. Too many times to count. BTA's a few times but also with my old ritteri whom was 24" diameter (huge monster) and could spew for hours on end.
In actual fact very often within 2 weeks of an equinox as well. And guess what was last weekend? Weird eh.
Anyhow. There's no question it's a kick in the stomach for the tank as far as bioload, but the real kicker is O2 depletion so it's imperative to keep your skimmer on, even if it overflows for now. An air bubbler couldn't hurt, but shouldn't be necessary.
Your tank will pull through.
I'm not sure what's up with the turbos - it *could* be coincidence - snails do have a terrible habit of dropping dead just like that.
