Wriggly things in my fish tank

[Allen Jiang]

I got these wriggly things in my tank are they ok to have with fish. (I haven't put my fish in even though it's been more then a month.

[Cory Cramer]

Could be planaria. I see them in my tanks sometimes, but I don't worry too much about them. It does seem odd to have them with no fish in there though.

http://www.fishdeals.com/fish_diseases/planaria_white_worms/

[Allen Jiang]

Their not like planaria their smaller.

[Tim Orth]

anchor worm?

[TCLynx]

are they swimming or are they on the bottom?

If there is no fish and not much water movement supplemental aeration, are you sure they are not mosquito larva?  If they are, hurry up and get some fish in to eat them before they become mosquitoes and start biting.

[Allen Jiang]

They are swimming on the top... And I hope I can get some fish soon! I'm not sure if they are mosquito larva...

[TCLynx]

Well mosquito larva certainly look like wriggly things int he water.

[Allen Jiang]

I think they are brown and small.