no
they drink the pee.
Yes, all species of spiders need water to survive.
Every living creature needs oxygen to survive. Just as every living creature needs water to survive. For example, such as spiders. Yup, spiders do to need oxygen AND water to survive, and of course food. So the answer to your question would be yes, snails do need oxygen to survive.
5g
well i don't have a swimming pool so i wouldn't know. But water spiders can bite, although i doubt that they would be able survive in a pool with all of those chemicals.
they catch small insects and fish
Insects and some types of mold.
Because that is how they get their food.
worms, and water Spiders
creepers and spiders
spiders make webs to catch there prey and ticks are parasites the feed off there host.