Double death

[mr_X]

yes. the "woodlouse" is a stomatella snail. a good guy.
i don't know about the sugar puff. can you take a picture of it?
there are rock boring mollusks all over most of the rock i see. could it be a cousin of the clam?

 

[mwilliams]

If you are buying your water from the stores besure to check it before you put it into the tank. I stopped buying mine from the stores because their hydrometer & my hydrometers had different readings. I had a Cleaner Shrimp that died within hours of putting in water that was low very low in salt. Then my tank almost crashed when the salt was too strong. So now I make my own Saltwater.