How do Fish Poop and Pee? [and How Often?]

How do Fish Pee and Poo
Rate this post

I wanted to write about how to do fish poop and pee because I see so many people have questions about the topic. It’s a very interesting subject!

How do fish poop and pee? How much urine does a fish produce in its lifetime? How do fishes eat without teeth, what is the purpose of their stomachs, and how can they consume food when their mouths are on the bottom of their bodies – these are just some of the questions that get asked often on this fascinating subject.

In this article, we’ll answer all your questions about How to do Fish Poop and Pee!

How Often do Fish Poop and Pee?

Different species of fish pee and poop at different rates. How often fish need to urinate or defecate depends on their size, the water temperature, the amount of dissolved oxygen in the water, and whether they live in saltwater or fresh-water environments – all these factors can affect how a fish pees and poops!

The average length of a fish is about 12 inches, so in the course of their lifetime, they might urinate or defecate as many as 2000 times.

This can be up to four times per day if you live in water that has high levels of dissolved oxygen and low temperatures – but this number could go down to less than one time per day in waters with low oxygen levels and high temperatures.

do fish poop

The frequency of fish peeing and pooping also depends on the size of their stomachs – for example, a small tropical fish might have very little room to store food in its stomach so it will need to eat more often than a larger deep-sea species that can hold much more.

How do fishes eat without teeth, what is the purpose of their stomachs? We’ll give you some answers to this question later on in the article!

After reading this article you must read this one also: A Full Guide About How Should You Pass a Fishing Boat: The Right Way 2023.

Does Fishes Pee and Poop?

Yes, fish pee and poop. They excrete nitrogenous wastes in the form of ammonia via their gills and urine through their cloaca (a single opening for the digestive, urinary, and reproductive tracts).

This process is called osmoregulation, which helps to maintain a proper balance of salts and water in their bodies.

Some fishes also consume small amounts of sand or gravel to help with digestion by grinding food in their stomachs. The sand or gravel then passes through their digestive tract and out the cloaca along with feces.

How Do Fish Poop?

how do fish poop
how do fish poop

The exact way in which fish poop varies depending on the type of fish. However, generally speaking, they do it by releasing their feces from a special bladder.

Fish release their feces from a special bladder which they release through the anus.

What color is fish poop?

Fish poop is brownish-green and has a very distinctive smell. It also varies in color depending on the type of fish – but it is generally brownish-green and sometimes yellowish-brown.

How Do Fish Pee?

Fish have a kidney to process and filter their urine, which means that fish can only urinate out of one orifice (i.e., mouth). This also means that when feeding, there’s always water in the fishes’ mouths.

What color is fish pee?

The color of fish urine is generally clear or yellowish-brown and it smells different than poop.

How to clean your fish tank from fish pee and poop?

You can clean your fish tank from poop and pee by adding a few tablespoons of table salt. Let the mixture sit for about 30 minutes, then rinse with water and an old toothbrush. The outcome will be sparkling!

Do Betta Fish Poop?

Yes, betta fish do poop! You may not see it happening but you will likely notice a pile of waste accumulating at the bottom of your tank.

Bettas are often mistaken for pooping uneaten food because their feces is typically clumpy and round rather than long and stringy like other pets‘. They gravitate towards one spot when they need to go potty, so if there’s debris in another area that could be where they’re hiding while getting their business done or someone else (like an aquarium plant) has been moving things around.

How much do whales poop?

Whales poop a lot. How much they poop depends on their diet, but some species produce about 500 gallons of poop per day!

What is fish poop called?

You may not know this, but fish poop is called “detritus.” Detritus has more than just fragments of dead matter from fish organisms and their fecal materials: it also includes pieces of algae that have been ingested by these creatures as they eat or when they are simply swimming about in the water column.

How do fish process poop and pee?

Fish process poop and pee in a variety of ways, from excreting it through their anus (as we’ve discussed) to eating the feces themselves.

Fish generally eat their waste as they feed on algae and other organisms that contain detritus – at least some types of fish do!

How does fish waste help to grow plants?

How does fish waste help to grow plants
How does fish waste help to grow plants

Fish waste is the poop of fish and can be used as a fertilizer for plants. While it sounds gross, there are many benefits to using this substance: one being that because it’s liquid, fertilizing with fish poo helps get nutrients into plant roots more quickly than they would otherwise; two being that by adding beneficial microorganisms back into your soil (as well as essential micronutrients), you’ll make your garden healthier overall.

It also smells better! This means feeding plants with fish waste gives them the nutrients they need, plus adds plenty of life-giving organisms right where their roots will absorb them most easily – in other words not just getting at all those important minerals but working symbiotically too so both parties benefit even further.

Why is poop hanging from my fish?

What are you feeding your fish? How long has it been hanging from them?

If they’re not eating, their feces may be clumped together and form a ball. The longer this happens, the more difficult it will be to remove. It’s also possible someone else (such as an aquarium plant) has been moving things around.

If they’re eating and the poop is still stuck to them even after a water change, then it’s possible your fish was not getting enough food in its diet for some time. How do you fix this? You’ll need to increase their protein intake by feeding more bloodworms or brine shrimp.

Why is my fish’s poop floating?

Some types of fish poop are a lot denser than others, which means it can float while the rest sinks to the bottom. How do you fix this?

The density also depends on what type of food your fish gets- some foods have more protein and fewer carbs or vice versa (such as bloodworms vs. brine shrimp). If you feed your fish with anything that’s high in protein, their poo will be lower density and sink along with other waste materials.


Do fish poop?

If you’re asking Do Fish Poop, yes they do. In fact, all vertebrates have a special bladder that releases ichthyotic waste through the anus!

Do fish urinate?

Yes, fish urinate in a process called “renal excretion.” How do they urinate? Fish have a kidney to process and filter their urine, which means that fish can only urinate out of one orifice (i.e., mouth).

Is fish poop good for plants?

Yes, fish poop is good for plants. In fact, many people use it as a fertilizer to increase the growth of their garden!

Can a fish suffer from constipation?

Fish can suffer from constipation, but it is more common for them to have diarrhea due to parasites.


The final question we’ll cover is about how to fish pee and poop. Fish can produce both urine and fecal matter, but the two are not usually mixed together in one body of water as they would be with humans. If you think about it, this makes sense because fish don’t have a stomach or intestines- their digestive system starts at the mouth!

That means that while all living things need to eat food for energy to survive, most freshwater fish species rely on plankton as their primary diet source so they get enough nutrients from what they consume rather than needing to process them through other parts of their bodies.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.