Here are some possibilities:
Common Pond Worms:
* Tubifex worms: These are small, red worms that often form clumps at the bottom of ponds. They are a good indicator of pollution, but are also a common food source for fish.
* Planaria: These flatworms are often found in shallow, slow-moving water and can come in various colors. They are carnivorous and feed on other small invertebrates.
* Leech: While not technically a worm, leeches are often found in ponds and can be parasitic or predatory.
* Roundworms (nematodes): These are microscopic worms that are very common in soil and water. Many are harmless, but some can cause disease in other organisms.
* Earthworms: These are familiar worms that can sometimes be found in ponds, especially if they are connected to a nearby land area.
* Water worms: This is a broad term that can refer to various types of worms that live in water, including segmented worms, flatworms, and roundworms.
To identify the worms in your pond, you'll need to consider these factors:
* Appearance: How big are they? What color are they? Do they have any distinctive features like segments or a flattened body?
* Behavior: What are they doing? Are they moving around freely, or attached to a surface? Are they feeding on other organisms?
* Location: Where in the pond did you find them? Are they on the bottom, in the water column, or attached to plants?
If you're unsure about the type of worm, it's always best to err on the side of caution and avoid contact with them. Some worms can carry parasites or diseases.
Do you have any more information about the worms you found? I can try to help you narrow down the possibilities.