Can betta fish eat algae wafers?

In this article we will discuss,if we can feed algae wafers to bettas.This guide will give an idea about their feeding preferences in terms of algae wafers.We will also discuss the pros and cons of feeding algae wafers to bettas.


In this blog

  • Can betta fish eat algae wafers?
  • What is algae wafer and what is it made up of?
  • Disease due to overconsumption of algae wafers
  • Do algae wafers cause algae blooms or algae outbreaks?
  • How many times should you feed algae wafers to bettas?
  • How to remove uneaten algae wafers from the tank?
  • Do hikari algae wafers make the tank water cloudy?
  • What are the benefits of feeding algae wafers?
  • How to scrape algae from the bettas tank?
  • Will algae wafers expire? 
  • Summary
  • Frequently asked questions
  • Reference 

Can betta fish eat algae wafers?

Bettas are carnivorous primarily and can be trained to eat a variety of food in aquarium settings.

They mainly like to eat live food and high protein freeze-dried frozen food,but can eat algae wafers too, if their favorite food is not available. But that’s not something they love to eat on a daily basis,they might not accept it daily.

It’s better to feed them once in a week or so.Make sure you are monitoring the water parameters too,when feeding algae wafers to them,because they might not eat that sometime and it totally depends on their mood.

In such conditions,it will settle down in the bottom of their tank and if left unattended,it will increase the levels of ammonia in their tanks and will change the water chemistry too.

The ammonia spikes due to leftovers will make it unsuitable to thrive in such dirty water.

What is algae wafer and what is it made up of?

Algae flakes or algae wafers have been developed for bottom feeding boxes that eat hard-to-feed fish and other algae. Contains high levels of vegetable matter that algae eaters prefer and love.

Rich in stabilized vitamin C,which reduces stress and boosts immunity to illness. Algae wafers contain over 30% protein and are made with algae,spirulina,vegetables, fish, kelp, shrimp, krill and other nourishing marine ingredients.

These wafers are formulated for optimum health, digestion, and color tones.Bettas are primarily carnivorous and require a lot of proteins in their diet so, if live food is not easily available ,this can be given as an alternative to them.

Disease due to overconsumption of algae wafers

Constipation due to overconsumption of algae wafers

A common sign of constipation in a fighting fish is bloating. If a fighting fish has problems with bowel movements, the stool will not go anywhere. The more time passes, the bigger their belly will be.

Constipation could make your betta have a hard time swimming in more extreme cases.

When their stomachs are completely full, the last thing the fish want to do is move. You need to see how energetic and lethargic your bettas are and If they don’t swim as usual, it may be due to constipation.

Swim bladder disease due to overconsumption of algae wafers

Swim bladder disease can cause your betta to lose control of its buoyancy and put it under severe stress due to its imbalance.This can even kill your betta if left untreated.

  • Buoyancy problems
  • Difficulty swimming, bettas will swim in unusual ways. 
  • Body balance problems

The bettas usually suffer from swim bladder disease, which puts it under more stress. 

The more stress they experience, the weaker their immunity and the more likely they are to contract a serious infection or disease.Its very important to treat this with time,their treatment include:

  • Maintain a separate hospital or quarantine tank for bettas to stop the spread of disease to other aquarium tank mates.
  • Epsom salts also known as magnesium sulfate is used to treat swim bladder disease,constipation and dropsy in bettas.
  • Increase the aquarium water temperature between 78-80F and wait for the enlarged intestine or stomach to get back in shape on their own.
  • This will take its own time,the only thing which needs to be done is monitoring them.

Do algae wafers cause algae blooms or algae outbreaks? 

The algae wafer itself does not grow algae. In fact, at least in certain situations, algae can grow and bloom.The problem with algal wafers is that they often sink to the bottom of the tank and remain inedible.

This can disturb the water chemistry too and bettas are very sensitive to poor water conditions,so it is very important to always remove uneaten or leftovers from the tank with an algae scraper and a gravel siphon without disturbing the beneficial bacteria.

This should be done on a daily basis religiously to maintain pristine water conditions for bettas.

What are the best algae wafers available in shops and online?

  • Hikari algae wafers-Feed them wafers that are completely consumed in about an hour, up to twice a day. Be sure to remove uneaten food after feeding time to avoid overfeeding.
  • Aquatic foods Inc. wafers of algae.
  • Tetraveggie algae wafers.
  • Aquatic arts algae wafers.
  • Api algae eater wafers.

How many times should you feed algae wafers to bettas?

Feeding frequency:

Bettas are voracious eaters and always eat whatever is thrown to them,But it is not the right way to feed them,because overfeeding can trouble them badly and ruin their digestive system.

It is very important to feed adult bettas twice a day and juveniles thrice a day.But when it comes to feeding algae wafers,it would be better to feed adults once or twice a week.

Don’t feed algae wafers to juveniles,because it might be very difficult for them to digest those wafers,so avoid feeding fry and juveniles and feed adults just once or twice a week.

Depending upon their likings,you can experiment by feeding them and if they are continuously rejecting it then kindly stop feeding them those wafers and continue feeding live food frozen for enhancing their finnage colors and their health too.

How to remove uneaten algae wafers from the tank?

The easiest way to avoid turbid water is to remove the inedible portion of the algae wafer after 45 minutes to 1 hour.

If the bottom feeder doesn’t eat it within an hour, it probably won’t-in which case the wafer will continue to dissolve and the water may become cloudy as a result.

Use algae scraper and siphon to remove algae and leftovers from settling down in their tanks.

Do hikari algae wafers make the tank water cloudy?

Specially designed for herbivorous fish, these wafers contain high levels of spirulina and chlorella algae and are specially formulated not to cloud the water in your aquarium.

These wafers come in a variety of sizes of resealable bags to keep them fresh. This brand of wafers is generally the most expensive, with prices ranging from $4 to $8 per bag.

What are the benefits of feeding algae wafers?

Algae wafers are rich in plant matter substances including spirulina, chlorella, vitamins, enzymes and minerals.They activate your cichlids, and help them grow to their optimal size,increase their lifespan, enhance their finnage color and make them overall healthy.

How to scrape algae from the bettas tank?

To scrape off algae with a razor blade, keep the blade at 45 degrees angle and gently rub the algae.

If you keep up with the weekly changes in water, there should be no problem with excessive algae growth in bettas tanks.Use the stainless steel or hard acrylic side to scrape.

If your tank is made of glass, stainless steel is perfect for you.

Will algae wafers expire? 

Expired wafers can be used beyond the expiration date. It does no harm to fish but still don’t feed expired food to your bettas.

Expired food may be okay to feed the fish, but long-term use is not a good idea as fish do not survive on poor diets and can cause health issues.

When nutrients are broken down, it’s like junk food with empty calories.In general,fish food can be used up to 3 months after the expiration date, performance levels may decrease after 2 months of the expiration date.

Expired fish food is not dangerous but nutrients may be less in expired food.


Algae wafers are made from a large amount of algae, plant material and cultured spirulina. In other words, it really is the perfect nutrient for fish.

A small amount of algae wafers should not be harmful to your betta, overconsumption can cause problems like constipation and swim bladder disease,and if left untreated, these diseases can eventually get much worse.

Algae wafers are a highly nutritious addition to any fish species diet, although bottom-feeding species may benefit the most.

When used correctly, algae wafers are a simple and inexpensive way to add variety to the diet of your algae eaters and other aquarium fish without clouding the water.

Bettas are very sensitive to poor water chemistry,if the uneaten algae wafer or leftovers of wafers sink in the bottom of the betta tank and left unattended,then it will alter the water conditions and make it unsuitable for betta fish.

The spike in ammonia levels makes them unhealthy and could be detrimental too.It is very important to clear the leftovers on a daily basis religiously with the help of a gravel siphon,without disturbing the beneficial bacterias from the tank. 

Frequently asked questions

What are the disadvantages of feeding algae wafers to bettas?

Indigestion and cloudy tanks (algae blooms) are two of the main things which are a cause of worry.

Which algae wafer is the best to feed your bettas?

Hikari algae wafers are perhaps one of the most useful and healthy options, bit expensive but worth buying.

What are API algae eater wafers?

API algae eater wafers are typically designed for fish, where algae are scraped from rocks, forests, or coral reefs.Give the amount of food your fish can eat in 2 hours twice a day.