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Watch tadpoles transform into frogs with this fun science activity
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Raising tadpoles is a fun way to watch these fascinating amphibians transform into frogs and learn more about science and nature. Simply collect tadpoles from a nearby pond or creek. Then, fill a tank with gravel, rocks, plants, and water from the pond. We spoke with fish and aquarium specialists Craig Morton and Aaron Bernard to learn the best ways to care for tadpoles and raise them into frogs. Read on to find out more!
How to Grow a Tadpole
Cover the bottom of a large aquarium tank or plastic container with gravel. Then, fill it with water, rocks, and plants from the pond where you got the tadpoles. Feed the tadpoles small pinches of boiled lettuce each day. When they grow back legs, feed them small insects, like mosquito larvae.
Steps
Section 2 of 5:
Setting Up a Tank for the Tadpoles
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House the tadpoles in a large aquarium tank or container. Tadpoles can be raised in most containers, though it's best for them to be housed outside. This helps attract more mosquitos to lay their larva, which the tadpoles like to eat. The fresh air also provides a cleaner and more oxygenated atmosphere. Just be sure to keep the tadpoles mostly shaded, though. Suitable containers include:
- A large aquatic tank
- A large plastic container
- A large, shallow pan
- A small inflatable pool
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Fill the tank with gravel , large rocks, and plants from the pond. Cover the bottom of your tank with gravel. Then, take several rocks from the pond where you got the tadpoles and place them around the tank. Collect some small weeds and grasses from the pond, too, and nestle them in the gravel. [3] X Research source
- The large rocks act as shelter for the tadpoles. They also provide land when the tadpoles transform into frogs and need air.
- The plants also provide shelter for the tadpoles. They also like to eat the algae on the leaves, as well as the roots. [4] X Research source
- Bernard says aquarium decorations like rocks and plants aren’t just ornamental—they provide animals with places to hide. He asserts that “animals need a place to escape if they feel threatened or overwhelmed…so giving them [decorations] will make them feel more at ease.”
- Make sure there has not been a recent application of pesticides on any plant life you add to the tank, as the chemicals can kill the tadpoles.
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Pour pond water or rainwater into the tank. Tadpoles need clean, dechlorinated water to survive and thrive. Simply fill the tank with water from where you gathered the tadpoles. Or, collect rainwater and pour it into the tank. [5] X Research source
- As a bonus, both pond water and rainwater can contain mosquito larvae, which tadpoles like to eat.
- Morton does not recommend using tap water, as it's full of chemicals that can harm tadpoles. If you have to use tap water, treat it with a water conditioner to remove the harmful chemicals like chlorine.
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Add 3 to 5 tadpoles per 1 liter (4 c) of water in the tank. If you overcrowd the tank with tadpoles, they may die out quickly or even become carnivorous. So, add no more than 3 to 5 tadpoles per 1 liter (4 c) of water in the tank. [6] X Research source
- For instance, if your tank holds 7.5 liters (2 gal) of water, add no more than 37 tadpoles.
- Note : Make sure the tank water and the water the tadpoles are in are at similar temperatures before you place the tadpoles in the tank. Sudden temperature changes can shock and kill the tadpoles.
- Most frog species prefer staying at room temperature, or around 65 to 74° F (20-23° C). However, they often grow more quickly in warmer temperatures around 75 to 80° F (24-27° C). [7] X Research source
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Set the tank outside in a spot where it receives mostly shade. Tadpoles need some light to survive but don’t do well in intense, direct light. Put the tank in a place where it gets about ¾ shade and some indirect sunlight. The tadpoles must be able to get out of direct sunlight when they want to. [8] X Research source
- For instance, set the tank under a tree or next to a fence in your backyard. If you can’t find a shady spot, hang a tarp or other covering over the tank.
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Section 3 of 5:
Feeding the Tadpoles
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Feed the tadpoles small amounts of boiled lettuce each day. Boil romaine lettuce for 10 to 15 minutes, or until the leaves are soft and squishy. Then, drain the lettuce and cut it into tiny pieces. Simply sprinkle a pinch of lettuce into the tank every day. [9] X Research source
- Adjust the amount of lettuce you give the tadpoles to ensure they’re not getting too much or too little food. If there is a lot of leftover lettuce in the tank the next day, add smaller pinches. If the tadpoles eat all of the lettuce very quickly, they likely need more food.
- As the tadpoles grow, their appetites grow, too.
- Tadpoles also like eating other greens, like spinach. Just make sure you choose greens with softer leaves and cut the pieces small enough for their tiny mouths.
- Alternatively, feed the tadpoles tadpole food or plant-based fish food .
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Give the tadpoles small insects when their back legs develop. Tadpoles start out as herbivores but turn into carnivores when they grow back legs. Simply drop mosquito larvae or water fleas into the tank each day. [10] X Research source
- As an alternative, feed the tadpoles fish food made out of animal matter.
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Stop regularly feeding the tadpoles when they grow front legs. Tadpoles typically stop eating once their front legs are fully developed. This is because they start absorbing their tail back into their body, which gives them enough nutrients and energy to survive. [11] X Research source
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Section 5 of 5:
Monitoring the Tadpoles as They Develop
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Be patient as the tadpoles grow. It typically takes tadpoles 12 to 16 weeks to fully transform into frogs. They usually develop back legs around 8 to 12 weeks and lose their tail at around 12 to 16 weeks. [12] X Research source
- This is just a general development timeline; different species of frogs grow more quickly than others.
- Keep in mind that tadpoles tend to grow faster in warm temperatures and slower in cool temperatures.
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Provide the tadpoles with more land as they grow legs. Tadpoles start to develop lungs when they grow their legs, which means they can’t breathe water like a fish. Make sure your tadpoles have plenty of rocks and plants to climb on to get air when they need it. [13] X Research source
- If most of the tadpoles have legs, lower the water level so they have more land to climb on.
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Release the fully-formed tadpoles back to the area where you got them. Once the tadpoles have front and back legs and lose their tail, it’s time to release them into the wild. Simply go back to the water source where you got the tadpoles and release the baby frogs near the edge of the water. [14] X Research source
- Warning : Do not release the frogs in a different spot than you collected them. This can potentially spread bacteria and diseases among the frog population that lives there.
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Provide the baby frogs with more space as they grow bigger. If you plan on keeping some of the baby frogs as pets , know that they require more space than tadpoles. Separate small groups of frogs into larger tanks to ensure they’re comfortable and happy.
- Find out what species of frog you're caring for to ensure it has all the space it needs. For instance, search for frogs native to your area and look at pictures to identify the species of frog you have.
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Community Q&A
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QuestionIs too warm water dangerous for tadpoles?Community AnswerIf water is too warm, it can be dangerous for tadpoles. Remember that tadpoles are cold-blooded, so the temperature of the tadpoles will adjust to whatever the temperature of the water is.
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QuestionDo tadpoles play with each other?Community AnswerYes, tadpoles will probably push and bump each other playfully to show affection.
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QuestionIf I have too many tadpoles in a tank, will they eat each other?Community AnswerIt will probably happen unless you keep their hunger under control. Make sure that you feed them regularly!
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Tips
- You can sometimes find tadpoles in deep puddles.Thanks
- Keep the water level in your tank relatively low. This makes it easier for the tadpoles to rest at the bottom. Once they develop legs, it's easier for them to get on land.Thanks
- Do not put the tadpoles in a fish tank with other fish or animals that could prey on them.Thanks
Tips from our Readers
The advice in this section is based on the lived experiences of wikiHow readers like you. If you have a helpful tip you’d like to share on wikiHow, please submit it in the field below.
- Document the location where you obtained the tadpoles. This way, when you have completed caring for them through metamorphosis, you can return them to their original habitat.
- Once your tadpoles get older, they will need to eat flightless fruit flies. Frogs are not herbivores and they can't survive on romaine lettuce only.
- Don't put your tadpoles in tap water. Get some water from where you found your tadpoles to raise them, since this is the best water for them.
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Warnings
- Check the laws in your area before you catch wild tadpoles or release the frogs. Tank-raised tadpoles can adapt to environments with different diseases that wreak havoc on local wildlife.Thanks
- Don't overfeed the tadpoles. This can make the water dirty and cloudy which can in turn suffocate the tadpoles. It can also increase the chances of water infection.Thanks
- Be careful not to get sunscreen, soap, lotion, or other products in the water, as the chemicals can kill the tadpoles.Thanks
- If you are raising the tadpoles outside, you might end up with a permanent frog-breeding society. In this case, make sure they are native to the area.Thanks
- Avoid putting the tadpoles in direct sun so they don’t get overheated. Make sure they have ¾ shade at all times.Thanks
- If you are in an area where mosquito-borne diseases are a problem, make sure to keep the amount of mosquito larvae in the water in check so the tank doesn’t become a breeding ground for mosquitoes.Thanks
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Things You'll Need
Setting Up a Tank for the Tadpoles
- Aquarium tank or plastic container container
- Gravel
- Rocks from the water source where you got the tadpoles
- Plants from the water source where you got the tadpoles
- Pond water or rainwater
- Water conditioner , optional
Feeding the Tadpoles
- Romaine lettuce or spinach
- Tadpole food or plant-based fish food , optional
- Small insects, like mosquito larvae or water fleas
- Fish food , optional
Cleaning the Tadpoles’ Tank
- Pond water or rainwater
- Water conditioner , optional
Expert Interview
Thanks for reading our article! If you’d like to learn more about fish and aquarium care, check out our in-depth interview with Craig Morton .
References
- ↑ https://mdc.mo.gov/magazines/conservationist/1995-07/raising-tadpoles
- ↑ https://www.fats.org.au/images/FrogFacts/FF6_April_2006.pdf
- ↑ https://mdc.mo.gov/magazines/conservationist/1995-07/raising-tadpoles
- ↑ https://sussexwildlifetrust.org.uk/news/rearing-tadpoles
- ↑ https://www.discoverwildlife.com/how-to/watch-wildlife/how-to-rear-froglets
- ↑ https://www.discoverwildlife.com/how-to/watch-wildlife/how-to-rear-froglets
- ↑ https://www.fats.org.au/images/FrogFacts/FF6_April_2006.pdf
- ↑ https://www.discoverwildlife.com/how-to/watch-wildlife/how-to-rear-froglets
- ↑ https://www.youtube.com/watch?v=1py7zsRCFgU
- ↑ https://www.discoverwildlife.com/how-to/watch-wildlife/how-to-rear-froglets
- ↑ https://mdc.mo.gov/magazines/conservationist/1995-07/raising-tadpoles
- ↑ https://www.discoverwildlife.com/how-to/watch-wildlife/how-to-rear-froglets
- ↑ https://www.discoverwildlife.com/how-to/watch-wildlife/how-to-rear-froglets
- ↑ https://www.discoverwildlife.com/how-to/watch-wildlife/how-to-rear-froglets
- https://allaboutfrogs.org/info/tadpoles/
About This Article
Article Summary
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To raise tadpoles, feed them a pinch of boiled romaine lettuce every day. Make sure the lettuce is soft and cut up into tiny pieces so the tadpoles can eat it. You can also give your tadpoles a couple pinches of fish flakes per week, but don't feed them too much or they could get sick. Once your tadpoles sprout arms, stop feeding them until they're finished transforming into frogs. Also, make sure they have some dry land to crawl onto so they don't drown. To learn how to set up a tank for your tadpoles, keep reading!
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"Now I know how to feed skipper! Yippee!"
"This the fourth time I have tried to raise tadpoles - I have never been successful. At the moment I have lots of them swimming around in a container with some pond water and weed. I was anxious to know what to feed them on and will now try them with boiled lettuce and later on perhaps flaked fish food. When we raised them many years ago, I am sure we put raw meat in the tank and managed to get them into froglets. I do hope I have better luck this year, as I love watching them. "
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"I have a tadpole and was looking for what to feed it because it turned into a froglet. Read some other articles before this but they weren't any help.This taught me that they eat their tail and mine had already done so. Was still wandering what to feed it and this said to keep feeding it what I was. Now I'm not worried that I would starve him because he is eating my fish food. Also going to try some of these ideas."
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"I just love tadpoles. One day my mom came home from work with a lot of them. They were really cute and fun to watch, but we didn't know how to take care of them. When they started to grow their back legs we moved them to a bigger, better tank. Three weeks after, my mom asked me to look up about the tadpoles, so I found this article. It really helps me and my family take care of the tadpoles."
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"I was walking around my backyard, and we have my Pappy's old boat sitting out there. I looked in the puddles of the boat and saw a few tadpoles and I'm like "Huh maybe I can have some baby frogs". So I took them and put them in a water bottle, and then came inside to see what to do because I had never raised frogs before. That's when I found this article. "
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