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Black Worms Vs Bloodworms For Fish And Amphibian Food!

After publishing our article going over if you can use black worms as axolotl food, we have seen a number of people reaching out and asking for a black worm vs bloodworm comparison article to try and help them decide on the best option for their pets.

With so many people reaching out with various questions about feeding their pet fish or amphibians black worms and bloodworms, we wanted to publish this article in the hope of helping you decide on the best option for your needs.

Both black worms and bloodworms are great food options for many species of fish and amphibians with both foods being popular choices.

Depending on your location, black worms can be difficult to find and will often have a higher price tag than bloodworms pushing most people to opt to use bloodworms instead of black worms as a food source for their pets.

You can usually find live black worms online if you really want to use them but outside of Australia and certain parts of North America, they do tend to be more expensive than just going with blood worm.

Although both options have a very similar nutritional profile to each other, neither are classed as being nutritionally complete so they should only ever be used as a treat food within a well balanced diet.

Are Bloodworms Good For Fish And Amphibians?

Bloodworms are one of the best food options for fish and amphibians due to their low price tags, ease of availability, and high nutritional content.

The majority of fish and amphibians tend to really enjoy bloodworms with some fish species seeming to enjoy hunting live bloodworm in their tanks as a source of mental stimulation for the fish.

Second to the ease of availability of bloodworms, another reason that they tend to be so popular is that they are available in three main forms being live bloodworms, freeze fried bloodworm, and frozen bloodworms offering a number of different ways that you are able to store and use the treat.

This can help keep the food fresh for longer and keep your costs as low as possible while also avoiding you having to keep live bloodworms refrigerated.

When it comes to the actual nutritional content of bloodworms for your fish or amphibians, frozen bloodworms actually retain the largest amount of vitamins and minerals as they are frozen instantly.

This tends to be followed by the freeze dried bloodworms with live bloodworms often containing the least nutrients due to the bloodworms using up the vitamins and minerals until the point of feeding.

Are Black Worms Good For Fish And Amphibians?

Black worms are a good source of food for both fish and amphibians that contain a solid nutritional profile but their costs can be higher than some of the alternative food options on the market.

The majority of commonly kept pet fish and amphibians will eat black worms without issue making them a great treat food option.

One downside of black worms is that most places will only sell live black worms due to the lack of popularity of the food type due to bloodworms and daphnia usually being the most common options.

This means that the live black worms do tend to be lower in nutritional content by the time they are fed to your pet while also not lasting as long as alternative fish and amphibian treat food options.

Still, if you are in an area where black worms are easy to source then they can be a great option for some fish but the majority of our readers will probably be better off going with bloodworms or daphnia.

As we mentioned earlier in the article, black worms are not considered to be a nutritionally complete food source despite their high nutritional content, due to this you should always look to only use them as a treat food for your pet fish.

Black Worms Vs Bloodworms

Black worms and bloodworms are very similar to each other when it comes to their actual nutritional profile with only minor differences between them.

Due to this, availability and price will often be the deciding factor for what you will opt to purchase and this is where bloodworms easily win the comparison due to being cheaper and much easier to find.

As we mentioned above, another advantage of bloodworms over black worms is that they are available as live, frozen or freeze dried bloodworms helping to keep the food usable for much longer than live black worms.

Technically, this can push frozen or freeze dried bloodworms ahead of live black worms due to having a higher remaining nutritional content too as we covered earlier in the article.

The majority of fish and amphibian species tend not to care if they are fed black worms or bloodworms either so there is no chance of black worms pushing ahead when it comes to preference either.

This is why the majority of the people in the fish keeping and amphibian keeping communities will just choose to go with bloodworms and be done with it.


That brings our article going over our black worms vs bloodworms comparison article to an end. We hope that we have been able to help you better understand the advantages of the products but in reality, bloodworms win in every way and this is why they are the more popular treat food option within the hobby and continue to grow in popularity. Other alternatives such as daphnia also tend to be more popular than black worms too due to having the same advantages of bloodworms that push them ahead of black worms as a food choice for fish.