need help with ID

fau8

Member
I have two things I am trying to ID the fisrt have shown up in my sump and I have not seen them in my DT. The are white fuzzy things similar to silver fish they grow into something like small cotton balls. Do I need to remove them? One of them also looks like a snow flake see pic.
Second is some type of --I call it a snail-- I have seen 2 of them in my DT they are covered with a domed shaped shell about the 1/2 inch in size max. I haven't seen them damaging anything but they certainly move around. Sorry I could not get a better quality pic.


 
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