Is my astraea snail dead?

[RedFrog211]

If the fish seem fine, then you should be okay. If they start thinning out though, I’d recommend feeding daily it would also leave extra nutrients in the water, allowing for algae to grow quicker, supplying the snails with more food

 

[FastandCurious]

Its every other day is that still okay?

I would definitely be feeding ur clowns daily. If u have to feed 1/3 of a cube then do that. Every cpl of days is too long. Also when the snails fall over always pick them up and place on rocks not sand. It's easier for them to attach and get moving again. And as far as feeding, mine don't really eat mysis, they are too slow. They mostly eat algae and are a godsend for when hair algae pops up.