If you recently bought rasboras for your home aquarium, you’re likely learning about caring for them. They aren’t difficult to take care of, but you still need to approach things the right way.
One thing to focus on to keep the fish healthy is their diet. You need to make sure that you feed the fish well so they can remain healthy and grow strong.
What do rasboras like to eat, though? Can you just feed them fish flakes or do you need to give them a varied diet so they can thrive?
Read on to learn everything that you should know about feeding rasboras. This rasbora feeding guide will help beginners to care for the fish the right way.
What Do Rasboras Eat?
Rasboras are omnivores and that means that they will pretty much eat whatever they can to survive. In the wild, these fish eat all sorts of things.
It’s common for rasboras to feed on small insects in nature. They also eat zooplankton, various types of worms, and even small crustaceans.
At home, you won’t need to feed them the same diet. However, they do still have the same nutritional needs.
Thankfully, there’s fish food that you can buy from the pet store that will give your rasboras the right vitamins and nutrients. You’ll also need to supplement their diet with live or frozen food several times per week.
Best Food for Rasboras
The best food to give to rasboras daily will be fish flakes. You should feed rasboras tropical fish flakes each day to give them the nutrients that they need to stay healthy.
Tropical fish flakes contain everything that fish such as rasboras need to thrive. So this will be the staple food that you’ll turn to daily.
This won’t be all that the fish will eat, but it will make up the bulk of the rasbora’s diet. You can easily get this food at the pet store and it doesn’t cost a lot of money.
Typically, you’re supposed to feed rasboras twice per day. Give them as many tropical fish flakes as they can eat within two or three minutes.
Do Rasboras Eat Shrimp?
Shrimp will certainly be a favorite of your rasboras. They love eating meaty foods, but this isn’t something you should give them all the time.
Normally, people give shrimp to rasboras as treats occasionally. You can give rasboras live shrimp if they’re small enough to fit in their mouths.
It’s common for people to feed rasboras both live shrimp and frozen shrimp. When giving your fish frozen fish food, it’s important to thaw it out completely first.
Brine shrimp will likely be the best type to buy for your fish. They will enjoy eating the shrimp and it’ll provide them with protein.
They will eat other types of shrimp that are small enough. Interestingly, there are many types of shrimp that are large enough to live in community tanks without being eaten by rasboras.
Do Rasboras Eat Algae?
You can’t rely on rasboras to keep the fish tank clean from algae. This doesn’t mean that they won’t eat algae, though.
It’s common for people to feed these fish algae wafers. Doing so can provide the fish with nutrients that will help them to stay healthy. Since rasboras are omnivores, they eat plant matter as well as meaty foods.
The tropical fish flakes that you buy from the pet store contain algae. These flakes also contain other ingredients, but it’s part of what rasboras need.
So you’ll be feeding your rasboras algae in some form each day. They might not eat it off of the tank like catfish, but they will eat algae when it’s part of other foods.
Do Rasboras Eat Plants?
Since rasboras are omnivores, you might be worried about them eating plants in your aquarium. This isn’t something you need to be concerned with, thankfully.
It’s possible that you might see rasboras nibbling on plants from time to time. This is not a common occurrence, though.
Rasboras aren’t known to eat plants in planted aquariums. They might eat plant matter from time to time, but they won’t devour the actual plants.
You’ll see rasboras feed on detritus in the water, but you don’t need to worry about them eating your plants. So it’s safe to keep these fish in a planted aquarium.
Rasboras truly like living in planted aquariums. It’s good for these fish to have access to hiding spots, and it’s important for them to be able to hide when they feel the need, especially if they live in community fish tanks.
Do Rasboras Eat Worms?
It’s normal to feed rasboras worms as snacks. There are quite a few different types of worms that you can choose to give them.
Many rasbora enthusiasts suggest feeding the fish tubifex worms. Freeze-dried tubifex worms can be purchased from pet stores locally or online.
Bloodworms are another common option that people turn to. Technically, you can give the fish live worms if you’d like to, but many prefer using freeze-dried worms.
Since rasboras are known to eat worms in the wild, it makes sense that they would enjoy them as snacks in captivity. These fish will love it when you feed them worms, but you don’t need to give them worms daily.
Do Rasboras Eat Snails?
A rasbora might eat a snail if it’s small enough. Snails aren’t typically purchased as snacks for these fish, though.
There are more convenient protein sources that you can buy from the pet store. Whether a rasbora will eat a snail comes down to whether it’s physically capable of doing so.
If the fish has a large enough mouth to swallow the snail, it might eat it. Some people have seen harlequin rasboras devour small snails whole.
Don’t feel as if you need to purchase snails as a food source for your fish. Also, rasboras won’t be the best option, if your tank is overrun with snails and you’re looking for fish to eat them.
There are some snails such as ramshorn snails that are commonly kept in community tanks with rasboras. So not all snails can be eaten by these fish.
Will Rasboras Eat Other Fish?
It’s not unusual at all to see fish eating other fish? Will rasboras do this, though?
You might be surprised to hear that they will. These fish are omnivorous and they’re going to eat whatever they can to survive.
In the wild, omnivorous and carnivorous fish will eat other fish. If the fish is small enough to be eaten, the bigger fish is going to take the chance at enjoying a meal.
This holds true in the fish tank as well. You need to choose tank mates for these fish wisely so they don’t eat other fish or get eaten by other fish.
Rasboras are incredibly peaceful fish. They are excellent community tank fish, too, but you still need to pick compatible tank mates for them.
How Often to Feed Rasboras
To get the best results, you want to feed your rasboras twice each day. Break up the feeding sessions so that the fish won’t eat too much at once.
Sometimes feeding fish one large meal can be bad. It might cause constipation issues that will lead to swim bladder malfunctions.
You can protect your fish by feeding it once in the morning and then once more in the evening. Each time you feed the fish, give it as much as it can eat in two or three minutes.
If you stick to this schedule, your fish will do very well under your care. Being consistent helps the fish to stay healthy and it keeps them from feeling stressed.
You will also need to feed rasboras live or frozen foods two or three times per week. Space these treats out and don’t give the fish too much.
How Much to Feed Rasboras
You want to make sure that you feed rasboras enough to keep them satisfied. Just don’t go overboard since that can be detrimental.
Feed rasboras twice per day to do things safely. You can feed the fish once in the morning and then once more in the evening.
Give the fish as many tropical fish flakes as they can eat in two or three minutes. Do this each time you feed the fish.
When feeding the fish treats, you want to only give them a little bit. Don’t feed them too many shrimp, worms, or other types of meaty treats.
You’ll likely give the fish meaty treats only two or three times per week. They will enjoy eating live food, but it’s fine to go with frozen or freeze-dried food as well.
How Long Can Rasboras Go Without Food?
Rasboras are hardy fish, but what happens if you forget to feed them? Well, they’re not going to enjoy it if you forget to feed them for a day or so, but they will survive.
It’s said that rasboras can go a week without eating so long as they’re healthy. They might be able to survive slightly past this point, but the one-week mark is where things begin to get dangerous.
You shouldn’t avoid feeding your fish for an entire week. This isn’t good for the health of the fish.
Fish do best when you give them a consistent diet. A fish that isn’t fed for several days will start to become stressed.
This stress can lead to the fish contracting a disease of some sort. Stressed fish have vulnerable immune systems.
Keep this advice in mind and do your best to continue feeding your fish daily. Even if you know you can get away with not feeding your fish for a day or so, it’s not the best idea.
What to Feed Rasbora Fry
Feeding rasbora fry will be a bit different than feeding a full-sized rasbora. Some rasbora fry are going to be exceptionally small.
These fish will have such small mouths that they won’t be able to eat standard fish food. You have options to keep these fish fed and help them to grow.
It’s common for people to feed rasbora fry freshly-hatched brine shrimp. These baby brine shrimp should be small enough that the rasboras will be able to fit them in their mouths.
They also like eating brine shrimp eggs. There are other things aside from shrimp that you can give the rasbora fry as well.
Rasbora fry can eat small micro worms. This will give them protein and it shouldn’t be too difficult to find what you need.
Small bloodworms can work for rasbora fry as well. Mosquito larvae are a common food that rasbora fry like to eat.
Vinegar eels can be fed to these baby fish and they’ll also be able to eat small daphnia. Once the fish begins to grow, it’ll be able to eat the normal foods that you give to other rasboras.
Knowing how to feed rasboras and what to feed them will make your life easier. You can take care of these fish to the best of your ability now.
To keep rasboras in great health, it’s imperative to feed them the right diet. These fish should eat tropical fish flakes daily to get the right nutrients.
They also need to be fed live or frozen food multiple times per week. This acts as a supplement to the diet.
Usually, it’s best to feed rasboras fish flakes in the morning and then again in the evening. Feeding the fish as much as they can eat in two or three minutes is the right route to take.
This keeps you from overfeeding the fish while ensuring that they get enough food to thrive. When picking out live or frozen food for your fish, remember that they enjoy brine shrimp and bloodworms.
Feeding the fish will be a huge part of keeping them happy and healthy. If you can focus on feeding them well, it’s likely that they will live for many years in your tank.
Be sure to keep the water quality in the tank high as well. All that you need to do to keep these fish in good shape is take care of the basics properly.
Jeff has always enjoyed having pets, but as a child, he was drawn to his family’s fish tank. Being able to maintain a small ecosystem and observe the behaviors and interactions in the underwater world peaked his interest early on and has kept him hooked until this day. On Avid Aquarist, Jeff shares everything he’s learned about helping aquatic life survive and thrive in a home aquarium.