Skip to main content

A simple guide to what to feed tadpoles in your aquarium

A list of everything you should and shouldn't give baby frogs

Frog sits on a rock
Austin Santaniello/Unsplash

Whether you’re taking in rescue tadpoles or planning to keep frogs as pets, you’ll have to adapt continually to their changing bodies. These amphibians undergo a metamorphosis and live as tadpoles for up to 14 weeks, though the last stage of the transition happens in just 24 hours.

You’ll put them to bed as a kid and come back to a teenager. Also, tadpoles are vegetarians, but frogs are carnivorous, so you should prepare for their diet to evolve as they do over the course of a few months. Here’s what to feed tadpoles.

Frog resting in a child's hand
Delmas Lehman/Shutterstock

What should you look into first

Be mindful that there are laws regulating amphibian ownership. You may need a permit to house these guys in your home in their child stage, adult stage, or both. Do your research fully to ensure you’re complying with local and state laws plus any regulations for your apartment or HOA.

Lastly, confirm with yourself and your family that you intend to commit for the long haul. Some frogs can live a decade, and you would have to keep them the whole time, plus the next generation, if you wind up with males and females.

Small child looks into a jar of tadpoles
Juli-s/Pixabay

How to care for tadpoles

Right off the bat, you need to make a couple of big decisions. Are you rescuing and releasing? Will your tadpoles live outdoors in a pond? Or do you intend to keep your animals when they become frogs?

While many tadpoles can live together when they hatch, an indoor tank will quickly become overcrowded with adult frogs. You’ll also need to update your tank’s decor as they morph. To start, tadpoles live entirely underwater and have gills like fish. In fact, most frog moms lay the eggs beneath the surface, so the entirety of the baby’s early life is spent submerged in your pool or tank.

As they begin the transition, everything about tadpole care changes. The key here is to look for those little back legs because that tells you the process has started and it’s time to think about making adjustments. Your froglet, an in-between stage in which they have both front and back legs but still have their tail, needs to spend some time out of water.

After the back legs have appeared, begin to add sticks and rocks or a small platform in anticipation of their lungs. Of course, their diet will need to adapt substantially as well. It can feel like every day they want something different to eat. Prepare for this by doing some meal prep as frog puberty sets in.

Tadpole growing legs to transform into frog
aguasas/Pixabay

What to feed tadpoles

If you bring home eggs, you’ll be able to watch the entire frog-rearing cycle. Tiny tadpoles will hatch, and they’ll be extremely hungry. Luckily, their first food source is right there in the tank. They’ll eat their own eggs to start, which contain some vital nutrients that their little growing bodies need. Next, they will want to munch on veggies and pond plants. If you’re feeding them anything from the kitchen, make sure to boil it. We recommend you give them dinner every day or every other day.

As the tadpoles develop into adults, they become carnivorous and suddenly want to eat meat, mostly insects. When they’re about 6 weeks old, introduce a few bugs into mealtimes and see what happens. When you see fully formed front legs, it’s time to pause the feeding. It seems weird, but your blossoming frogs will actually eat their own tails (a little gross, but it works). When they finally emerge transformed, you’ll move entirely into frog foods. So, what can you feed your animals? Stick with these items.

Food for tadpoles:

  • Algae
  • Romaine lettuce
  • Kale
  • Cucumber (no seeds)
  • Broccoli
  • Carrot
  • Commercial tadpole food

Food for frogs:

  • Crickets
  • Mealworms
  • Grasshoppers
  • Brine shrimp
  • Bloodworms
  • Commercial fish or frog food
Green frog swims in pond
NadineDoerle/Pixabay

What not to feed tadpoles

The smaller the tadpole, the more they need to rely on leafy greens and algae. As they develop, follow their cues to determine which snacks they’re ready for. However, you should stay away from some foods entirely because tadpoles can’t digest them.

  • Never feed these amphibians commercial pet food made for another animal. Dog, cat, and even turtle kibble can be deadly for them.
  • You also want to avoid sugary snacks like fruit or pumpkin, and always take out the seeds from any other squash you might give (small amounts of zucchini, for example, are OK). Unless it’s in the veggie drawer, it’s probably off-limits. Make sure all vegetables are fresh, too (no preservatives or butter allowed).
  • Once they get to the bug-consuming stage, stick with feeder insects from the pet store. You don’t want to bring in any diseases from the backyard.
  • Lastly, if your tadpoles don’t get enough calories, they may start to eat one another. You can separate them temporarily to get back to a healthy feeding schedule.

There are a few more things to keep in mind about your new tadpoles. First, mosquitoes love still aquariums and may use the water as a place to breed. If you keep your pets indoors, be mindful of insects. Change the water frequently to prevent pests and maintain your little guys’ health. After every feeding, remove any excess bits of lettuce or wafers (some ponds and tanks can handle growing algae, so leave that alone). Old food will rot and contaminate the enclosure. Check with a vet or specialist if you notice anything wrong with your new pets, like signs of disease or alarming digestive issues, especially after a change in sustenance.

Editors' Recommendations

Rebekkah Adams
Rebekkah’s been a writer and editor for more than 10 years, both in print and digital. In addition to writing about pets…
Could it be a dog paw infection? Signs, symptoms, and treatments for these pesky, painful issues
Dog paw infection 101: How to avoid and treat this problem
Dog paws on a wood slab

It's hard not to relish daily walks with your dog. You both get fresh air and much-needed exercise, and seeing your dog explore and discover the world is oh-so-fun. Afterward, you and your pup might even engage in a cozy snuggle session on the couch. What could be better?
Dogs also walk in small amounts at home, whether during a play session or a trip to the backyard, and paw health is essential to keep them comfortable and walking. If one or more of your dog’s paws gets injured or infected, mobility can be tricky, painful, and sometimes impossible. As a pet parent, the last thing you want is to see your fur baby in pain. Injuries might be inevitable, but understanding the causes, signs, and treatment for a dog paw infection can ensure your pet gets the proper care as soon as possible. After all, early detection and treatment can prevent the condition from getting worse.
Here’s what you need to know.

What causes a dog paw infection? You can help your pup avoid paw discomfort if you know what to look for
As much as we'd like to give you an easy answer, several factors can contribute to a paw infection. Here are a few common ones.

Read more
What fish can live with bettas? These are your best bets for fish buddies
These are the 6 fish that do well living with bettas
Blue betta fish staring at the camera

Betta fish are known for being territorial, feisty, rather combative, and therefore not great tank mates in general. This reputation, however, only holds true in particular situations and with certain fish friends. Male betta fish are aggressive, but only with other male bettas so it is important to never put two males in the same tank. It will lead to tail nipping and other aggressive behavior. So what fish can live with bettas?

Happily, there are several other fish that will keep your betta company in a safe and non-aggressive environment. Many colorful, friendly fish cohabitate well with bettas. This is our guide to finding the perfect fish companion (or companions) for your betta.

Read more
Is your puppy breathing fast while sleeping? Here’s when you should worry and how to help your dog
When to call a vet because your pup is breathing fast while sleeping
A Jack Russell terrier lies in bed between the feet of his owner

It’s hard not to love watching your puppy sleep. In fact, they might somehow manage to get cuter as they snooze. They look so content and peaceful, especially if they're snuggled up to you. Though experts frequently recommend giving your pet their own sleep space, like a crate, it’s ultimately up to you. Regardless of where and when your puppy is sleeping, you want them to be comfortable and safe. If you notice your puppy breathing fast while sleeping, you may get worried. Should you be? It depends.
Here’s what experts want you to know about labored breathing during sleep and when to call a vet.

Different puppy sleeping patterns
Before we get into breathing patterns, it could help to have some knowledge of puppy sleeping patterns. They're similar to ours, though puppies cycle through them more quickly than humans. A puppy may experience 20 sleep cycles nightly. Humans typically go through about four or five cycles. These are the phases.

Read more