05/15/2026
It's that time of year again. Be on the look out for blue-green algae. It is toxic and can be fatal to pets. *Immediate veterinary care is crucial*
Blue-green algae can be found in any non-flowing water. Think ditches, culverts, sluggish rivers, pools or decorative ponds. Blue-green algae gives water a murky look, as if paint has been poured into it.
Remember
- Keep watch for water with algae blooms. Do not let your dog swim in it or drink it.
- If your pet encounters blue-green algae, rinse them with fresh water, and take them to the vet.
- Know the symptoms of algae toxicity: difficulty breathing, lethargy, vomiting, seizures, convulsions, drooling.
For more information and photos of blue-green algae, check the Government of Nova Scotia's website at
Blue-green algae information and reports for Nova Scotia. Watch for blue-green algae from May to October. Blue-green algae (also called cyanobacteria) occurs naturally in surface waters like lakes, ponds, rivers and streams.