What is this worm? Help me ID

[Sunrise]

I don’t know what it is…,

 

[86 ssinit]

Looks like planaria. If a shrimp tank it need to be removed.

 

[Sunrise]

Not a shrimp tank- though I do want to add shrimp later. How should i go about removing it? The ember tetra’s ate one, and spit it out later. I don’t think that’s the only one, though.

 

[86 ssinit]

No-planaria will get rid of them. Now before you do this make a planaria trap. Just take a water bottle and with a pin put about 20 pin holes in the bottom. In the bottle put an algae wafer and something to hold the bottle down. Small rocks. Fill the bottle all the way up and put the cap back on. Stand it up in the substrate. Planaria will go in but can’t get back out. Next day see how many you caught. If you caught a lot. Redo and move the bottle to the other side of the tank. Do this till the numbers get less. Than treat with the no-planaria. This will kill whatever’s left and won’t leave lot of dead one to raise the ammonia.

 

[Sunrise]

Here’s more pictures- just
In case it changes anything

 

[SamMe]

The pictures aren't very clear. The first set of pictures look like planaria, but the second set of pictures look like detritus worms. Planaria have a distinct triangle shaped head and crawl in a determined pattern. Detritus worms are long and thin and mostly swim/float through the water. Detritus worms are harmless, usually just a sign of overfeeding.

 

[Sunrise]

You know how catipillars move? It moved like that. Here’s another picture to help. Also, is that tetra fry? Just wondering.

 

[SamMe]

Yeah, that sounds like planaria.

Sorry, I can't help you with what kind of fry you have. But congrats!

 

[86 ssinit]

Lol definitely a fry . What’s in the tank? Now the last pic is planaria but the pics before do look like a detritus worm. With that type of gravel both can happen.

 

[Sunrise]

Lol definitely a fry . What’s in the tank? Now the last pic is planaria but the pics before do look like a detritus worm. With that type of gravel both can happen.

Just ember’s. Yes, it probably is planaria. I know that this is harmful, but in what way? To what animals? Just want to broaden my understanding of the aquarium hobby.

 

[SamMe]

The only thing planaria are harmful to are shrimp. They will prey upon the shrimplets and possibly even the adults. Some fish will eat them. I only had them once, and my Harlequin Rasboras thought they were a tasty snack. Try what 86 ssinit suggested, and try not to overfeed. Vacuuming the substrate can also help. If that was detritus worms in the one picture, overfeeding causes them to really increase as well.

 

[richiep]

I cannot identify them as planaria from any of your pictures
They look like Detritus

 

[coralbandit]

Planaria should be recognizable to the OP .
They often have a pronounced triangular shaped head, and even the eyes are visible sometimes.
Source: Planarian - Wikipedia