Will Frogs Eat My Pond Fish?

In the warmer months, you may notice a frog or two lazing about on a lilypad or swimming near your pond fish. This may cause you to worry that the frog might eat your beloved fish, so will frogs eat my pond fish?

Will Frogs Eat My Pond Fish?

Yes, frogs are carnivores and will eat any pond fish that is small enough to fit in their mouths, such as small goldfish, baby fish, fish eggs, and tadpoles. Giant goldfish and koi fish are generally safe from frogs; however, one type of frog will eat larger fish, a bullfrog.

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What Pond Fish Will Bullfrogs Eat?

Bullfrogs have giant mouths and eat anything they can fit there, such as big goldfish and smaller koi fish.

Bullfrogs have ferocious appetites and eat birds, other frogs, snails, rats, and bats! So not many pond fish are safe from the bullfrog, and it is safe to say that the bullfrog will eat all small and medium pond fish and some larger fish, including : 

  • Siamese algae eaters
  • Guppies
  • mollies
  • fish eggs
  • baby fish
  • all types of goldfish
  • red shiners
  • small high fin banded sharks
  • baby fish such as baby koi fish
  • pumpkinseed fish

Will Bullfrogs Eat Large Fish Such As Koi Fish?

Will bullfrogs eat large fish such as koi fish? Bullfrogs eat baby koi and small koi fish, but they generally leave larger adult koi fish alone. Adult koi fish can grow between one foot to three feet in length, depending on the type of koi fish.

The golden orfe is another breed of pond fish that bullfrogs will not eat. The golden orfe is quite large; it can grow between one foot and one and a half feet long. In large ponds, the golden orfe can grow up to 3 feet long.

The third pond fish that should be safe from bullfrogs: is the pond sturgeon. There are different varieties of pond sturgeons and can vary in size between one meter and 10 meters.

The fourth pond fish that should be safe from bullfrogs is common plecos. Common Plecos can grow to be between one to two feet long. One type of common plecos that will not be safe from the bullfrog is the bristlenose plecos because it is tiny with an average length of only 4 inches.

The fifth pond fish that should be safe from bullfrogs is the weather loach or pond loach, as it can grow up to one foot in length.

What Fish Will Green Frogs Eat?

What fish will green frogs eat? Green frogs will eat any fish it can fit in their mouth, but luckily its mouth is relatively small. Green frogs might eat : 

  • fish eggs and baby fish
  • Guppies
  • mollies
  • red shiners

Will Green Frogs Eat Goldfish?

Koi Fish and Goldfish in a pond

Will green frogs eat goldfish? Green frogs will only eat some types of goldfish as they vary in size, and some types are too large for green frogs to eat. The types of goldfish that green frogs might eat are :

  • The bubble eyed goldfish
  • The twisted tailed goldfish
  • The telescope goldfish

Will Green Frogs Eat Koi Fish?

Will green frogs eat koi fish? Green frogs will eat koi eggs and baby koi fish, but they will leave adult koi fish alone as adult koi fish are too large.

What Fish Won’t Green Frogs Eat?

What fish won’t green frogs eat? Green frogs only have small mouths and can not swallow a larger fish such as :

  • koi fish
  • Siamese algae eaters
  • large goldfish
  • small high fin banded sharks
  • pumpkinseed fish

What Goldfish Are Safe From Green Frogs?

What goldfish are safe from green frogs? Goldfish come in many different sizes, and there are a few more giant goldfish that green frogs can not eat due to their size.

The first type of goldfish that is safe from green frogs is the common goldfish. The common goldfish can grow between 12-14 inches in a pond.

The second type of goldfish safe from green frogs is the shubunkin goldfish. The shubunkin goldfish can grow between 1 foot and 18 feet long.

The third type of goldfish safe from green frogs is the Ryukyu goldfish. The ryuku goldfish can grow to be between 8 and 10 inches long.

The last type of goldfish safe from green frogs is the comet goldfish. The comet goldfish can grow between 10-12 inches in length.

How To Identify A Bullfrog?

The number one way to identify bullfrogs is by their very large eardrums because it is as big as their eyes. The second way to identify a bullfrog is its vast size and heavyweight. Bullfrogs are the heaviest frogs in the USA, and They can grow to 8 inches for male bullfrogs and 6 inches for female bullfrogs. The weight of bullfrogs can be as heavy as 1 pound. 

The third way to identify bullfrogs is by their ridges, which start from behind the eyes and go all the way around the eardrum; unlike the green frog, the bullfrog’s back is smooth and ridge-free.

Another way to tell if it is a bullfrog or not is by the color and markings on its body. Bullfrog’s color can range between light green and very dark olive, and their eyes can be reddish-bronze or gold. 

Female bullfrogs can have green upper lips, whereas male bullfrogs have yellow lower lips. Female bullfrogs can have cream throats in the breeding season, and male bullfrogs usually have yellow throats. 

The different markings on the bullfrog are another way to tell it apart from other frogs, and the lower legs can have stripes on them that may be dark and blotchy. There can also be black or brown spots on its body and head, and there may also be grey splotches on the back. The bullfrog’s belly is usually white or cream. The shape of a bullfrog’s head is typically flat and wide, and the skin texture is smooth and wrinkle-free.

What Sounds Does A Bullfrog Make?

There are numerous sounds the bullfrog will make, such as when communicating with other bullfrogs, it will make a chirping sound and a rasping noise. To signal that a male bullfrog has invaded its territory, the bullfrog will give a short sharp call as a warning. The bullfrog makes one of the most disturbing sounds is the distress scream, a loud screaming sound.

When a bullfrog feels that they are in danger, they warn other bullfrogs by making an alarm call sound which is a short squeak. To make their presence known and attract a female bullfrog, a male bullfrog will make a sound called the advertisement call, a sound that can be heard day or night and is a bellow that is very low pitched. When a human picks up a bullfrog, the bullfrog will make a soft growling sound as it tries to escape.

How To Tell The Difference Between A Bullfrog And A Green Frog?


There are a couple of different factors that can help you to tell the difference between a bullfrog and a green frog, such as :


One of the significant differences between the bullfrog and the green frog is size. The bullfrog is a lot larger than the green frog. Bullfrogs can grow to 6-8 inches compared to a green frog, usually 2-3 inches.

Green frog


One of the differences between the bullfrog and the green frog is that green frogs have ridges that go down their back to their legs, unlike the bullfrog, whose back is smooth and ridge-free. The bullfrogs’ ridges start from behind the eyes and go all the way around the eardrum.

How To Get Rid Of Bullfrogs?

To get rid of bullfrogs from your pond, you will need to follow these two steps :

Step 1: catch the bullfrog.

Bullfrogs are a danger to your pond fish and will eat them, so it is best to remove the bullfrog as soon as possible. To do this, you will need a net and a large deep container with a lid. Catch the frog in the net, put it in the container, and release the bullfrog into a lake or pond.

Step 2: Prevent bullfrogs from returning

  • Sprinkle salt all around your pond; bullfrogs hate salt because it irritates their skin and will act as a bullfrog repellent.
  • Ensure there is no food in your backyard, such as leftover pet food, as this could attract bullfrogs.
  • Turn off any backyard lights of a night as this could attract insects that attract bullfrogs.
  • Remove algae, weeds, and long grass because bullfrogs like to hide behind them from predators. 
  • Put a waterfall in your pond, bullfrogs like to lay their eggs in still water, and a waterfall will circulate the water making the pond less attractive to bullfrogs.
  • As a last resort, you can get a fence installed around your pond. The fence needs to be at least 3 feet high.

Are Bullfrog Eggs Toxic To Pond Fish?

Are bullfrog eggs toxic to pond fish? No bullfrog eggs and other frog eggs are not harmful to pond fish; However, Toad eggs are poisonous and may harm or even kill your pond fish.

 Most toads eggs will make your fish sick, but there is a highly toxic type called a marine toad or cane toad. There are two ways that the marine toad can kill your pond fish; the first way is if your pond fish eat the eggs, it can kill them within 24 hours as the eggs are highly toxic.

The second way that marine toads can kill your pond fish is that they can add thousands of eggs to your pond within a short space of time. A large number of marine toad eggs can cause a massive amount of waste, and as a result, the dissolved oxygen content will reduce, and the level of ammonia will increase.

The filter will stop working in a small pond, and your fish could die from ammonia poisoning or lack of dissolved oxygen; in large ponds, this should not be a problem.

Cane/Marine toad

How Do I Get Rid Of Bullfrog Eggs And Tadpoles In My Fish Pond?

How do I get rid of frogspawn and tadpoles in my fish pond? The best way to obtain rid of frogspawn and tadpoles is to manually remove them with an aquarium net, as using chemicals in the pond such as chlorine could be harmful to your pond fish.

To remove frogspawn and tadpoles from your pond, use an aquatic net, scoop them out, and put them in a deep container; make sure you look behind every pond plant so that you don’t miss any.

Transport the frogspawn and tadpoles to a local public pond or lake and release them.

Do Bullfrogs Eat Koi Fish And Their Eggs?

Koi fish

Do bullfrogs eat koi fish and their eggs? Bullfrogs will eat any fish they can fit in their mouth and will definitely eat koi eggs and baby koi, but adult koi fish are generally large and, therefore should be safe from bullfrogs.

Bullfrogs can be helpful in your pond if you have large adult koi fish, as bullfrogs will eat koi eggs and stop your pond from becoming overpopulated with koi fish.

Are Bullfrogs Poisonous To Humans?

Are bullfrogs poisonous to humans? Bullfrogs are not poisonous to humans, they do have toxic skin, but it is only harmful to animals. Although bullfrogs are not poisonous to humans, they have high levels of bacteria in their urine and on their skin, and if it gets into your bloodstream or an open wound, there is a slight chance it could make you unwell.

Bullfrogs have toxic skin to protect them from being eaten by other animals, but they still have predators such as raccoons, herons, turtles, and water snakes.

Are Bullfrogs Poisonous To Cats And Dogs?

Are bullfrogs poisonous to cats and dogs? Bullfrogs are not toxic to cats and dogs; however, some frogs and toads can be poisonous as they secrete a large amount of poison when they feel threatened, and this can be deadly for your pet.

First Signs Of Frog Or Toad Poisoning In Dogs?

First signs your dog might have eaten or licked a poisonous frog or toad:

1. mucous membranes (gums and inner cheeks) that are bright red

2. Head shaking

3. Pawing at the mouth or eyes

4. Retching

5. Increased drooling

Signs that frog or toad poisoning has reached your dog’s gastrointestinal tract include:

1. diarrhea

2. Vomiting

Signs that frog or toad poisoning has reached your dog’s nervous system include:

1. Weakness

2. Disorientation

3. Ataxia means your dog will be unsteady and may struggle to walk in a straight line

4. Collapse

5. Seizures

Signs that frog or toad poisoning has reached your dog’s heart include:

  1. abnormal heart rhythm
  2. difficulty breathing

Signs your cat might have eaten or licked a poisonous frog or toad:

1. Mucus membranes (gums and inner cheeks) that are bright red

 2. Pawing at the mouth

3. Drooling

 4. Vocalizing

Signs that frog or toad poisoning has reached your cat’s gastrointestinal tract include:

1. Vomiting 

2. diarrhea 

Signs that frog or toad poisoning has reached your cat’s nervous system include:

1. stumbling

2. abnormal eye movements

3. Tremors

4. seizures

Signs that frog or toad poisoning has reached your cat’s heart include:

1. difficulty breathing

2. increased/decreased heart rate

3. abnormal heart rhythms

What Should You Do If Your Cat Or Dog Has Licked Or Eaten A Poisonous Frog Or Toad?

Frog or toad poisoning in cats and dogs can be fatal, and symptoms can progress quickly, so you need to get rid of the poison from your pet’s mouth and eyes.

First, flush your pet’s mouth with running water, then wet a washcloth and clean your pet’s face and eyes. If symptoms worsen or you suspect your pet has eaten a frog or toad, take your pet to the vet immediately.





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