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Small white worms on aquarium glass, what are they?

CheckeredRust

Member
Joined
4 Jun 2021
Messages
53
Location
Asia
Hi all, I'm 15 days into cycling/maturing my new low tech planted tank, so far I have been doing 50% water changes, and started dosing fertilizers twice a week about 7 days ago. My lighting hours are average of 6-8 hours daily. Just hours ago, I decided to inspect the tank, and realize there are very tiny and short white worms(?) crawling on the surface of the glasses. Does anyone knows what are they? I'm unable to provide a photo as I do not have the equipment, and it can't be seen on a phone's camera.

Also, I just did a 50% water change yesterday, and probably added extra fertilizer than usual (4ml instead of the usual 2ml). What could the reason of the worms appearing? There isn't any live stocks inside or feeding involve, my tank doesn't have any visible algae at all too.

I found a photo online that looks similar to what I'm seeing, just that the worms in my aquarium is much smaller.



1624174451047.png
 
Last edited:

Tom72

Member
Joined
25 Mar 2021
Messages
61
Location
Leeds
They look like detritus worms, which are harmless. They are a result of either over feeding, or beak down of organic matter, plants, they come in on plants, fish or substrate. It may be a sign of low oxygen levels as they live in the substrate, and adding an air stone would help, or increasing your surface agitation. They won’t harm any fish or shrimp and are part of the ecosystem.
 

CheckeredRust

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Thread starter
Joined
4 Jun 2021
Messages
53
Location
Asia
They look like detritus worms, which are harmless. They are a result of either over feeding, or beak down of organic matter, plants, they come in on plants, fish or substrate. It may be a sign of low oxygen levels as they live in the substrate, and adding an air stone would help, or increasing your surface agitation. They won’t harm any fish or shrimp and are part of the ecosystem.
Ah that's a relief to hear. I posted a video above of the worms. Could adding extra fertilizers cause this?
 

CheckeredRust

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Thread starter
Joined
4 Jun 2021
Messages
53
Location
Asia
Ah, is there any reason why they are appearing during the cycling process? I didn't add any fish food or whatsoever to kickstart the cycling. Will the worms die overtime as there's no food?
 

Tom72

Member
Joined
25 Mar 2021
Messages
61
Location
Leeds
I would keep up with your water changes, wipe the glass regularly and vacuum any mulm that builds up. See how that goes, I have had them in the past and they disappeared. As there are no livestock an anti worm treatment could be tried, but I would just keep it simple at the moment and monitor it. If it doesn’t improve or gets worse then treat it.
 
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