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What are these? PLEASE HELP!!! ASAP!! Answered

What are these things in water? They appeared in her water bowl, but our male cat drinks out of it too though...What are they? They look sorta like tad poles or worms or something... PLEASE ANSWER ASAP!!!!!


They kind of look like mosquito larva to me. Keep them in a closed jar, and see if they ever mature into adult mosquitoes. Mosquitoes larva make interesting pets. They're sort of like Sea Monkeys(r), except they're also a disease vector, for humans that is. You know mosquitoes can carry viruses like Malaria and West Nile, but I'm not sure what that means for dogs and cats.

In my experience, dogs eat, and roll around in, the most filthy things imaginable, e.g. things that are dead and rotting, or covered in feces, or both, but it doesn't seem to impact the health of the dog.

I just put them in an enclosed jar of Ragu spaghetti sauce (obviously theres no spaghetti sauce in it, its water)...so now what do i do? how do i handle them?

You know, you probably don't have to identify what these creatures are down to the exact genus and species. You posted a question here because you were concerned about your dog, and I think the solution is just what Lemonie suggested, that is changing the water more frequently. I dunno, maybe once a day?  How long did it those critters to grow to the size seen in your picture?  More that a few days would be my guess.  So I'm also guessing that changing the water once a day would keep them from getting established. 

The other thing I was saying is that dogs are tough.  Cats too.  They eat filthy things all the time, and they stay healthy in spite of this.    Also, can you realistically control everything your pets lick, or lap up? You try to control their environment somewhat, but there are limits to what you can control, and it's stupid to get caught up worrying about things you can't control.

That being said, I was just saying growing the mosquitoes from larva to adult, might be just something fun to do. I don't think you are going to gain any really valuable information doing this.  Also some people will tell you that this is a dumb idea, because there is danger of the mosquitoes escaping and biting you, and besides they're just gross, and nasty!

Anyway, setting these questions bioethics and good taste aside, the trick to raising mosquitoes in a jar is you just put them and their filthy water in a jar,  and leave them for about a week.  That's really all there is to it.  You do not need to feed them anything. They eat algae, bacteria, and other filth that's floating around in the water.  

Also the last time I grew some mosquitoes in a jar, I kept the lid on pretty tight.  I did not put any air holes in the lid, because I was worried about the possibility of mosquitoes escaping through the holes.  I might have unscrewed the lid a little bit now and then, to let in a little fresh air, but overall I was not worried about the well being of the mosquitoes.  Mostly I just wanted to keep them from escaping. 

In the end I let them die in the jar.  Then tossed the dead mosquitoes plus muck, into the dirt.  The glass jar and its lid went into the trash, and they went wherever it is the trash goes to.

But I took some pictures, and I'll post those below for anyone reading this thread to gawk at.

Of course Wikipedia has better pictures of mosquitoes, and real info possibly written by real entomologists, here:


+1. Mosquitoes carry heartworm disease from animal to animal.

I see mosquito larvae and slime/algae - if you genuinely cared for your pets, you would wipe it out every time you re-filled it, rather than just topping it up.

i do... she drops her food in it all the time

Those larvae are several *days* old.

heres the story.....
i got home froom school
got her out of her cage
gave her fresh food and water
put her back into her cage because...
...i went grocerie shopping
got home and there they were.

I agree with others..but have a different request/advice to offer...

I know this is 7 yrs old, but if anyone reads this....

What I know after years of learning about dog health:

••• While dogs are great at handling stuff that's an infection risk for us (dead things, or gross things with bacteria, etc), they're NOT great at handling chemicals and processed fats. That's one factor in tumors being so frequent among them.

••• Dogs, all dogs, need frequent but short spurts of exercise. This is for overall health and prevention. Unlike humans, who can do well with 30m every few days if we're otherwise good to our bodies, dogs need like *5-10m every few hours.* Cageing for a LoNg time is WAY worse for them than anything random in their water.... If you're in college, your schedule is actually probably perfect, as most students have short stretches of classes, less than 4hrs!

So, instead of thinking 'oh man all this work is too much with my human lifestyle' (bc it's really a lot for a normal human with avg obligations), instead of cutting corners with a different thing every week to manage it, pick easy ways wherever you can cut the work to begin with, so you have time to not skip the important stuff...


1. Make sure your dogs spend no more than 4hrs at a time and no more than 8hrs a day in the cage. 0-hrs is ideal, but I get that you have a human life too!!!

They're fine there a little while, but if that's how they spend most of their time it's like keeping them chained to their bed and letting them out for recreation. It's less space than a human prison!

Maybe there's an small room somewhere to keep her instead? Where you can let her roll around more, play with toys and have way more room to stretch and move around?

They don't need an acre. But a cage is the other extreme. Just, at minimum, 3x their size in every direction.

(So a 2ft long, 20" wide dog needs a 6ft x 5ft space when contained, but much more during recreation).

2. I've had trouble in the past keeping up with all the stuff experts suggest, so I found there are ways to keep them healthy without committing to all these little things that add up to a lot. So the time I do have to spend with them is about what they really need from me - playing, a little exercise, the best food possible, belly rubs, etc...

••• I only wash the water bowl with soap 1x/month. BUT, when I top it off *every day I swish the last 1/4" of water around, with serious gusto, before dumping it, and rinse it that way!* So nothing ever sits in it. It's a nice, low work way to keep it clean between washings. (My kitchen is 2 flights up, so it saves a lot of time over the year.)

••• I also give my dogs filtered pitcher water like I get (use a good 1, not Brita) and their skin and fur are MUCH healthier since (I didn't change their food or anything for 6mo after switching to filtered, to be sure, plus I've done research on this.) So their bowls and mouths stay cleaner in the first place. If you don't need a filter where you live, NVM, but if you drink filtered they definitely should too. Bc tap water has so many chemicals (not great for us, but we're relatively better adapted to it). It's like how certain plants only take rain water. Or how fish tanks can't take tap water, it needs to sit overnight or be treated to fight chlorine, etc....

••• Instead of brushing their teeth 1x/week (which they're not happy or compliant about anyway), I give them *marrow* bones. It's nutritious, keeps them busy when I leave (a great distraction when your girl is in a cage btw), and cleans their teeth really well. Then I brush only every month or so.

••• I only wash their food bowls when they were really slobbery or if they ate anything wet (so at least 1x or 2x per week, but not after every meal). Dry food and a little invisible saliva are okay for them. Like people said, they eat bacteria all the time.

Thanks for reading!


6 years ago

yep looks like mosquito larvae to me.
you should change the water in your pet bowls everyday and wash the bowl with hot water or use dishwashing agent/solution. this step will prevent algae/bacteria growing due to food spills etc.
well my cats sometimes 'smart' enough to drink from pond or puddle with mosquito larvae in it, when they play outside. I tried to prevent them but they're cats and i'm only human. they look okay afterwards, but still its best to keep their bowl clean everyday.
here's a pic of a mosquito larvae.. looks kinda the same with yours.


6 years ago

Tiny eggs coming through your water line.
Test it, fill a water bowl and let it stand for 3-5 days covered with a glass.
If you see more insect-larvae switch to bottled water.
Our animal vet said we get annual micro eggs that pass through filters.
Our water is supplied by mountain reservoirs.

Good luck,


You see that green-stuff in the bottom left corner?
The bowl is outside, insects would have easy access to the standing-water in it.


it was inside i just put it outside because i didnt want my dog drinking that stuff when there are mosquito things in there

Fish'll eat 'em, probably harmless to dogs.


These are almost matured mosquito larvae, you can find them in all kind of water ponds, literally or not. Of course, these can come from the main water supply but in rare causes.

Your dog will be fine, no heartworms at larvae stage, only mature mosquitos can carry the worm but only when he bite an infected animal.

If you`re scared, you can boil the water and let it cool down before you serve it to dogs.

They are insect-larvae.
Have you thought about throwing that water away and re-filling the bowl?


Pet water dishes should be cleaned/refilled regularly.

"her" as in dog...the bowl is for my female dog but my male cat drinks from it also... plz help....