tiny whaite worms

guppler

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I was cleaning my isolation tank today and noticed some tiny white worms or something crawling slowly on the bottom of the tank. The last time I found a live worm in my tank it turned out to be a tubiflex worm. I don't know how it got there. I have never knowingly put any worms in any of my tanks unles they were freeze dried, and i didn't think that kind could revive. Maybe some hitched a ride with some plants or fish somehow. Anyway I want to know if the ones i found this time are harmless or good to eat or dangerous.

They are only about 2-3 mm long at most and apeear to be shaped a little like a slug or flatworm. I haven't tried looking at them with a microscope or magnifier yet.

The only fish in the tank where I saw them is Hook. He appeared to be in the early stages of dropsy, so I put him in there to medicate him. He had a room mate for a week or 2. I noticed that she looked sick the day after i started his meds, so I decided she could join him and if they recovered and had kids, taht would be fine, because I was thinking about breeding Hook anyway. she was thin and lethargic, but didn't really have specific symptoms other tahn that. She died, but Hook looks fine now, except that he tends to sit in one place most of the time. I was thinking about adding some girls to see what would happen, but decided to wait, partly because of the worms.

Before Hook went in the isolation /breeding tank it had been empty for a little while and It's only other ocupants were Bright, from the same tank Hook came from, and some girls, all of whom have returned to their regular tanks. I haven't seen any fry from them. Bright migth be getting old, and he doesn't look like the healthiest fish, but he was the only one left with his color pattern. Now Hook is the only Delta tailed Tuxeedo boy I have left. Most of my bigger boys are not as active as they used to be, or as active as my smaller gupplers. Some have pale areas on their tails. I took one dead small one out today, but lately they haven't been dying as often as they have at some times.

I also started medicating one of my girl tanks because one of them has a bad case of dropsy, I would taken her out, but I don't want Hook to get sick again and I don't have another small tank ready, besides, I thought I saw another fish in the same tank with a less obvious problem, and there could easily be others, because I went too long without cleaning that tank. This is not the same tank that the girls I was trying to breed came from, and I don't remember for sure which tank Hook's poor little roommate came from, so if the worms are causing problems they could be in any of my guppy tanks, but might not be in all of them. :/
 
Sounds like Planaria

Planaria:

If small white creatures are seen crawling all over the glass and ornaments, especially at night, they may be planaria. Planaria commonly show up in tanks with an excess of food. Most are introduced to an aquarium from other aquaria with live foods like black worms, live plants, or anything else moved from an active aquarium that has them. There is some belief that they can survive in freeze-dried or frozen foods. If a lot of food is left in a tank; including dead and dying fish, snails, other animals, and plants; then a few planaria may divide into hundreds very quickly. They usually reproduce by asexual fission. Their heads are shaped like arrow heads. If a tank is found to be infested, planaria can be controlled by a good vacuuming of the gravel and better tank maintenance. To remove more planaria, see the next section on controlling planaria. Planaria will eat dead fish, fish eggs, and immobile fish larvae (fry newly hatched). They do not pose any risk to mobile fry or adult fish.

Taken From here

More info here aswell

Hope that helps :)
 
I wondered if they could be planaria. I haven't turned the microscope on 'em yet, but it sounds like good news so far.
The bad news is Hook died :( I guess it was whatever made him look pineconish, even though the outward signs went away. He was about 19 months old. probably not bad for a guppy.
I'll probably clean the little tank before putting somebody else in, but if fry like to eat these guys then i might want some in a breeder tank or girl tank.
 
They can be dangerous to some fish and tastey snacks to others, but i cant remember which fish they are dangerous towards...

I had a problem with them a few days ago, but after a few water changes and i havent seen one for two days now

So if you want to get rid of them, just do waters changes, and put in some weekly cleaner if you have any... ;)
 
In an ideal tank, planaria shouldn't exist - these are signs that some waste are not being handled by the filters. I used to have some of them when I had gravels - which allows lots of waste to get stuck between them. Ever since switching to either pool filter sand or play sand, I don't see these worms any more... Worms themselves may not harm fish but the fact that they are present means you may have to gravel vac more often...

In a clean tank, you should rarely see these worms... ;)
 
I still gotta get my hands on a gravel vac, but at the moment my new powerhead seems to be doing the job on getting rid of most my fishy waste, and i am suffering less from the little bliters

;)
 
Thanks for the advise, all.
I still haven't gotten the microscope out, or cleaned the tank i found the critters in, but there are no fish living in it either, at the moment. I think the reason I was able to see them was that I have no gravel in this particular small tank. there could be a few hiding in my other tanks, but i don't see them. i have been kind of bad at keeping up with cleaning at times, but I recently rinsed some new containers for preparing water, so i can do more cleaning in 1 day instead of refilling and waiting for H2O to reach room temperature between tanks.
;)
 

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