What is this red worm and snail called?

[Doc]

Hi, could anyone identify them? The red worms are kinda small, red and they usually gather in large groups around the unclean part of the gravel. They can expand their length to around 2.5-3cm. Tried feeding them to my platies and they were crazy over the worms. The older worms have this translucent layer around their bodies when looked closely.
As for the snail the biggest one ive seen is small, about 1-1.3 cm in length and have patterns on their shells.
By the way, is it alright to dig up the worms and feed the fishes?

 

[neilanh]

That's a pond snail in the first pic. Not sure what those worms are.

 

[BigJim]

Welcome to AA!

+1 on the pond snail ID. The worms look like tubifex worms. They're usually a sign of a dirty tank.

 

[herp_mommy]

is it alright to dig up the worms and feed the fishes?

I think they're tubifex worms also, which my fish love to eat. so go ahead and feed them