Betta Fish Poop: What It Is, When To Watch For It, And Why You Should Clean Your Tank

Betta fish are very clean pets. They spend most of their time swimming around in their little bowl, so they tend to keep themselves pretty neat and tidy. That being said, giant wild betta fish do poo, and pet owners should know what to look out for so as not to deal with it too often. These finicky little creatures are known for having a small, fine waste output. Because of this, faeces from your pet is more likely to show up in the form of small black pellets than big brown rotten or manure-like stinky stuff that’s harder to clean out of the tank afterwards. Keep reading to learn more about what a Betta fish poop looks like, as well as when you should be watching out for it and how you can clean your Betta tank with ease.

What is betta fish poop made of?

If you’ve ever wondered what the exact components of betta fish poop are, you’re not alone. As there are a variety of ways to produce waste, the composition of Betta poop can be different from one batch to another. What’s more, there isn’t one “best” way for a betta fish to pelletise their waste. In fact, the actual composition of betta fish poop can vary depending on a variety of factors, including the diet of your pet, their health and even the tank water itself. The most commonly identifiable ingredients of betta fish poop are mucous, protein and uric acid, with traces of vitamins, minerals and carbohydrates.


Betta fish poo signs to watch for

Betta fish poop is more likely to appear in small quantities than large, smelly poops and can be hard to spot. As such, betta fish owners should regularly be on the lookout for the following signs that their pet is pooing:

– Black, cylindrical pellets that look like chocolate chips, with a diameter of between 0.5 and 2 millimetres.

– Dark-coloured faecal material (something that’s yellowish or clear is usually pretty fresh)

– Small amounts of waste in the form of bubbles – Running water in the bowl that is clear but for traces of black waste.

– Smell in the tank that is similar to ammonia or rotten eggs.

– A bacterial bloom in the tank that has died down after a few days – Increased filter or power consumption.


How to clean betta fish tank after a poop-out

Betta fish faeces are very hard to get rid of, so cleaning your tank after a poop-out is a very important part of keeping your pet healthy. It’s important to clean your Betta tank after a poop-out to prevent the growth of harmful bacteria that could cause a bacterial bloom in the tank. Bacterial growth is what you want to avoid, as it can make your tank smell really bad and turn your water green. It can also cause your Betta to get sick, as well as be unhealthy for other tank inhabitants if it stays too long. The best way to clean your tank after a poop-out is to use a gravel vacuum to suck out any waste. You can also pour tap water into a clean container and use a siphon to remove the waste. Other options include using a filter, such as a good protein skimmer, or getting your tank professionally cleaned. If you’ve recently changed your Betta’s diet, you may want to wait a few days before cleaning out your tank as the new food may take longer to exit the tank than the previous food did. Also, make sure to change your Betta’s water before cleaning out the tank, as cleaning the tank with dirty water could cause your betta to get sick.

Betta Fish Poop: Why Is It Even Needed In A Tank?

Betta fish poop is something that occurs naturally in the wild. In the wild, a betta fish’s faeces provide food for bacteria that help break down waste. The bacteria are what give the water in the tank a nice, clean smell. If a betta fish’s faeces are not broken down by bacteria, then the smell is unpleasant and can cause a bacterial bloom in the tank. If the smell becomes too strong, it can make it difficult for your Betta to breathe, so you’ll want to get it under control as soon as possible. Luckily, betta fish poop is very difficult to clean out of a tank because it’s made up of protein, vitamins and minerals that help the bacteria break it down and turn it into something your tank will love.

6 Tips For Spotless Betta Tanks Every Day

Here are some tips that will help you keep your Betta tank as clean as possible: – Change the water in your Betta tank at least once per day. – Change the water in your Betta tank twice per day if you notice algae growth in the tank. – Clean the gravel in your Betta tank at least once per week with a gravel vacuum. – Rinse your filter media at least once per week, or more often if the water in the tank is cloudy. – Change the water in your Betta tank at least once per week. – Clean the sucker on your protein skimmer at least once per week, or more often if the water in the tank is cloudy.


It’s important to keep your tank as clean as possible to prevent it from stinking up your home. Even if your pet does poo, it’s not hard to keep your tank clean as long as you follow these steps. Plus, Betta fish poop doesn’t actually hurt your pet or harm the tank itself, so there’s no reason to be too stressed out about it.