Unexpected Fish: Can they hitch a ride on purchased plants? - Fish for the Planted Aquarium - Aquatic Plant Central

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Fish for the Planted Aquarium Planted Aquarium Fish - Discuss which type of aquarium fish are best suited for the aquatic plant environment you have created. Create a natural home for aquarium fish using aquatic plants.

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Old 02-02-2020, 04:29 PM   #1 (permalink)
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Angry Unexpected Fish: Can they hitch a ride on purchased plants?

Can fish hitch a ride on plant purchase?

I have a planted tank, eight months old with several different kinds of plants. The tank is thriving and healthy. Iíve never introduced fish and donít plan to for a while since I wonít be around to care for them.
A week ago, I introduced two new plants from a most reputable seller.
Tonight I turned up the intensity of my LED and I have a very tiny, one inch long, eel-like fish in my tank. Any Ideas what it is and how invasive it might become?
This was not in my plans for the tank.
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Old 02-02-2020, 05:34 PM   #2 (permalink)
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Default Re: Unexpected Fish: Can they hitch a ride on purchased plants?

Welcome to APC!

Yes, it is possible. Some species of fish lay adhesive eggs on plants, and these could survive being shipped on wet plants. And a tiny fish could simply stick to the plants accidentally, or survive in a small amount of water in the bag.

Chances that it will be a problem are low, especially if there is only one! You could take it out, but my curiosity would make me keep it just to find out what it is, LOL.
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Old 02-02-2020, 05:48 PM   #3 (permalink)
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Default Re: Unexpected Fish: Can they hitch a ride on purchased plants?

Killifish are the most common "accidentals" on plants, but "eel-like" does not sound like a killie. Yes, grow it up and see what it is! Maybe one of the eel-like loaches? They can get transported in plant root balls.
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Old 02-02-2020, 06:19 PM   #4 (permalink)
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Default Re: Unexpected Fish: Can they hitch a ride on purchased plants?

By the Youtube videos I see, it looks like a nemotode. (Worms?)
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Old 02-03-2020, 05:39 AM   #5 (permalink)
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Default Re: Unexpected Fish: Can they hitch a ride on purchased plants?

Can you post a photo? Many newly hatched fish are eel-like. If it is a fish, there should be very visible eyes.
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Old 02-03-2020, 10:53 AM   #6 (permalink)
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Default Re: Unexpected Fish: Can they hitch a ride on purchased plants?

I removed it from the tank as it really fit descriptions Iíd seen of a very active, wiggling Nematode.
Iíll watch for more but Iíve only seen the one. He was just too tiny and infrequent to photograph.
I think I learned a lesson about cleaning new plants with peroxide, first.
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Old 02-03-2020, 10:55 AM   #7 (permalink)
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Default Re: Unexpected Fish: Can they hitch a ride on purchased plants?

Itís now beached on the side of a clear, cereal bowl. Maybe when the peroxide clears, I can get a macro shot of it.
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Old 02-03-2020, 11:37 AM   #8 (permalink)
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Default Re: Unexpected Fish: Can they hitch a ride on purchased plants?

Hereís a pic.
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Old 02-03-2020, 11:44 AM   #9 (permalink)
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Default Re: Unexpected Fish: Can they hitch a ride on purchased plants?

Definitely not a fish. Did it ever swim with a side-to-side wiggling motion? These are sometimes called detritus worms, and are harmless.
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Old 02-03-2020, 11:58 AM   #10 (permalink)
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Default Re: Unexpected Fish: Can they hitch a ride on purchased plants?

Bettershot
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