Is Blue-green algae Toxic to Pets?
Yes — blue-green algae is toxic to cats. Yes — blue-green algae is toxic to dogs.
PawSafe Check is for general information only and is not veterinary advice. Always contact your veterinarian or a poison control service if you think your pet has been exposed.
- Toxic compound
- Microcystins, anatoxins
- Toxic parts
- Contaminated water
- Also known as
- cyanobacteria, toxic algae
Symptoms
Cats (toxic)
- Vomiting
- Diarrhea
- Weakness
- Tremors
- Seizures
- Trouble breathing
Dogs (toxic)
- Vomiting
- Diarrhea
- Weakness
- Tremors
- Seizures
- Trouble breathing
What to do
If your cat ate blue-green algae
- Call your vet or a pet poison control line immediately — don't wait for symptoms.
- Do not induce vomiting unless a vet tells you to.
- Bring the plant, label or packaging with you so the vet knows exactly what your cat ate.
- Note roughly how much was eaten and when.
If your dog ate blue-green algae
- Call your vet or a pet poison control line immediately — don't wait for symptoms.
- Do not induce vomiting unless a vet tells you to.
- Bring the plant, label or packaging with you so the vet knows exactly what your dog ate.
- Note roughly how much was eaten and when.
Good to know
Toxic algae blooms in ponds and lakes can kill dogs within hours of swimming or drinking. Avoid scummy, green or blue water.
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Frequently asked questions
Is blue-green algae toxic to cats?
Yes — blue-green algae is toxic to cats. Common signs include vomiting, diarrhea, weakness.
Is blue-green algae toxic to dogs?
Yes — blue-green algae is toxic to dogs. Common signs include vomiting, diarrhea, weakness.
Which parts of blue-green algae are toxic?
Contaminated water.
What makes blue-green algae toxic?
Microcystins, anatoxins.
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