Do you have sand in your tank? They usually poop on sand. If you do have sand, is it covered by something else? Like moss? If so, you should make a little space in the corner where the gecko can poop. All they need is a little space, and the poop will always end up there. Unless you forget to take out the poop. Then it will be somewhere else.
Leopard geckos should have small daily poops, or larger poops every other day. This is the case with healthy, well-fel geckos. There should be a brown part to the poop (digested food) and a white part (urine.)
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Guinea pigs will poop in spots where they go a lot like around their food bowl, timothy hay, toys, or water bottle.
Get it to an exotic animal veterinarian! NOW! This is a symptom of a disease known as Cryptosporidiosis that is potentially fatal to geckos!
Hermit crabs excrete their waste by going in their shells and scooping it out, usually in their water bowls, no matter how many times you change the water the hermit crabs will still scoop it out in the water. Hermit crabs make so little liquid that you will never find it.
Take laxatives to increase and soften stool and bowl movements
Cages? Well maybe once a week. All you need to do is scoop out the poop.
human
under water
they poop in it
you eat poop swim right after it do a ton of flips in the water wait till you puke poop
This is for betta fish but you can use it for other fish too but why would you keep a fish in a bowl tha's not a betta? Betta are the only fish that can stay in a bowl: When you first get the fish clean out the bowl (make sure there's no dust or anything). How to clean the bowl the first time: At the first time you need completely new water for the fish. Wipe the bowl and make sure it doesn't have dust, residue, or anything dirty make it super clean and shiny. You'll need to put warmish water into the bowl and add water cleaner so it doesn't harm the fish. You can buy water cleaner from your local pet store (the one you got the fish from). And your bowl is ready to go. Second time cleaning the bowl: Make sure you have a container to put your fish in when you clean the water. It has to be big enough so your fish can swim in it. Now you take just a little bit of the old water and keep it for the bowl after. Okay, now you take the fish out with a net and put it in a container with water in it. Now you take out the extra water in the bowl that has poop in it and stuff and put it down the sink or something. Then you clean the bowl if you have to and add water wih water cleaner into the bowl. Also leave some room for the old water from the bowl before it was cleaned so the betta doesn't get shocked or anything from the water change. Then, add water cleaner to the bowl again. Now take your fish out of the container with the net and put your fish back to where he was. That's about it. And also after a few weeks change ALL of the water and keep it warmish. If you change the water temperature to cold right away he'll go into shock for the change of temperature! hope I helped :)