Hi guys.
I haven't posted here for a long time now.....but I need a little help.
When I cleaned the tank today, I noticed some worm looking things in the bucket.
I picked one up to have a closer look, and it looks like a centapede but skinny, clear and little eyes...
Any ideas?
I googled and came up with Planaria worms?
www.aquariumfish.net/information/having_trouble_p2.htm
Sort of like this.

planaria is common to tanks with substrate....here is similar thread with
same concern
www.oscarfishlover.com/oscar-fish-advice...car-fish/74414-worms

Never experienced them myself but there have been a few posts recently about the planeria worms. Sounds like they are harmless, other than being an eyesore, and most likely from overfeeding.

Any advice on getting rid of them?

control feeding and regular cleaning is the only way...if you want to keep
the substrate therein..... in my case, i remove the substrate and have a
bare bottom tank

Now there's an idea!!

im not sure this is planaria... i have had planaria issues a couple different times in my long career keeping fish, and i have never once found a planaria worm big enough to pick up and inspect legs on it. biggest i have seen measured at most 1/16th inch long, and very thin. they are flat worms, and generally speaking flatworms dont have the little legs like you have drawn. is it possible its some sort of Polychaeta??? (like a bristle worm?)

Are they harmful to my fish or me?

These are from 1cm to about 3.5cm long.

It doesn't look like this bristle worm which they say is stinging...
www.alltropicalfish.com/content/view/137/101/
It looks more like this...
www.wgwguild.com/images/albums/Fish/BristleWorm-1.jpg

One is said to be harmful, another says they don't do harm??

i am not proficient enough to tell the different species apart, but i can tell you some are poisonous and active predators. however the majority are opportunistic scavengers. "I" personally would be flippin right f*** out and have some hemostats and start plucking them out and killing them... carefully so as not to get stung.

can you post your water parameters for us? is this a freshwater tank? i know that sounds silly but most of the bristleworms are marine, and the majority are actually harmless. whats in your tank?

Freshwater
I have two black ghost knife, a few top feeder fish (small), a large golden loach, a bristle nose catfish, a stack of kuli loaches.
Water temp is usually 25-6 deg C.
PH 6.8
Amonia 0ppm
Nitrate 7ppm
Nitrite 0ppm