Protect Your Pup: Toxic Algae Could Be Lurking in Local Lakes
- Amanda Breckenridge
- May 18
- 3 min read
Updated: Jun 11
At Texas Ruff House, we know how much dogs love the water—but not all lakes are safe! Toxic algae has resurfaced in Austin area lakes, posing a serious risk to pups who swim, sip, or play in contaminated water. This harmful bacteria can cause life-threatening health issues, so it’s essential to know how to identify toxic algae and protect your dog while enjoying summer adventures.
Let’s dive into what you need to know to keep your pup safe this season!

Understanding Toxic Algae and Its Danger
Toxic algae, also known as blue-green algae, is a harmful bacteria that thrives in warm, stagnant water. It’s fueled by excess nutrients like phosphorus and nitrogen, creating thick mats or scum on the surface.
Signs of Toxic Algae Presence
Signs of toxic algae include:
Murky water with a green, blue, or brown film.
A strong, musty odor.
Floating clumps of algae or foam.
How Toxic Algae Affects Dogs
Dogs are especially vulnerable because they often drink lake water or lick their fur after swimming. Exposure can lead to severe symptoms, including:
Vomiting and diarrhea.
Difficulty breathing.
Seizures.
Weakness or collapse.
The Austin area has witnessed multiple cases of toxic algae poisoning in dogs. According to the Austin Watershed Protection, several dogs have become seriously ill after swimming in contaminated water.

What Should You Do If Your Dog Comes Into Contact with Toxic Algae?
If your pup has been in questionable water, act fast:
Rinse them immediately—before they lick their fur!
Monitor for symptoms like vomiting, lethargy, or difficulty breathing.
Seek veterinary care ASAP—toxic algae poisoning can be serious.
For emergency guidance, contact the ASPCA Animal Poison Control Center or your local vet.
How to Avoid Toxic Algae and Keep Your Pup Safe
The best way to protect your dog? Avoid stagnant water and check local water reports before heading out.
Safe Swimming Tips
Stick to these safe swimming tips:
Swim only in clear, flowing water.
Avoid lakes with visible algae mats.
Check Austin’s algae updates before visiting local lakes.
Keep fresh drinking water on hand so your pup doesn’t sip from the lake.
If you’re unsure about a lake’s safety, skip the swim and opt for backyard fun instead!
Safer Alternatives for Summer Splash Time
Your backyard pool is totally safe—as long as it’s properly treated. And if you don’t have one, check out Swimply, an Airbnb-style platform for renting private pools. You can even filter for dog-friendly options!
Fun Backyard Water Activities
For extra fun, try these Texas Ruff House favorites for backyard water play:
Foldable pools for dogs.
Splash pads for pups.
Cooling vests for hot days.

Stay Safe and Enjoy Summer with Texas Ruff House!
Austin area lakes are beautiful, but toxic algae can pose a real risk for pups. By staying informed and choosing safe swimming spots, you can keep your dog happy and healthy all summer long.
For more summer safety tips, check out our previous blog: Top Tips for Summer Safety!
Carla Tittle left the world of child education in 2015 to pursue her passion for helping people and their pets. Over time Carla has been able to cultivate a team of pet care experts and Texas Ruff House now services Pflugerville, Hutto, Round Rock, and Georgetown. As passionate pet owners ourselves, we know how important it is for your furry friends to receive the best care. Our daily visits make sure your pets get the exercise, attention, and mental stimulation they need, giving you peace of mind while you finally take that long-awaited trip. From leash training and cat care to fun dog field trips, this blog is packed with expert tips straight from the pros in pet care!