Every summer, we hear from frustrated Texas landowners wondering why their once-clear pond has turned a thick, soupy green. Algae blooms can show up overnight — and if left untreated, they can choke your pond, harm fish, and make water look and smell terrible.
At Highland Pond Management, we deal with this every season. This post breaks down why it happens, what doesn’twork, and what we do to fix it — permanently.
Algae blooms are a common summer problem for Texas ponds — turning clear water into green soup seemingly overnight. This blog explains why it happens (nutrients, heat, and stagnation), why quick DIY fixes often fail, and how Highland Pond Management solves the issue with bottom-diffused aeration, biological treatments, and customized maintenance plans. If your pond turns green every summer, here’s how to fix it — and keep it clean for good.
The short answer: algae fueled by excess nutrients, sunlight, and poor circulation. But there’s more to it:
Fertilizer runoff from lawns, pastures, or fields
Shallow water that warms quickly
Decaying organic matter like leaves, fish waste, and muck
Poor oxygen levels from stagnant water
In the Texas Hill Country, intense heat and UV exposure supercharge algae growth — especially in ponds without proper aeration or shade.
Hot water holds less oxygen, so algae thrive while fish suffer
Long daylight hours give algae more time to photosynthesize
Still water turns into a perfect algae breeding ground
If your pond lacks circulation or is overloaded with nutrients, you’re almost guaranteed to see green water between May and September.
We see it all the time: people dumping copper sulfate or dye into their pond without results — or worse, harming fish. Here’s what to avoid:
Overusing algaecides can kill fish and destroy the pond’s ecosystem
Surface-only aerators don’t mix deep layers or oxygenate properly
Ignoring the cause (muck, runoff, shallow design) guarantees algae comes back
At Highland Pond Management, we solve algae issues from the source, not just the surface. Our process includes:
1. Bottom-Diffused Aeration
Adds oxygen throughout the pond to break down excess nutrients and improve circulation.
2. Biological Treatments
We use safe, targeted bacteria blends that consume the same nutrients algae feed on.
3. Water Testing
We test nutrient levels and water clarity to tailor treatment to your exact needs.
4. Ongoing Maintenance
Monthly service plans to prevent algae from returning, especially during summer months.
If your pond has:
Repeated algae blooms
Fish kills or foul smells
Thick shoreline muck
Milky or green water that won’t clear
…it’s time to call Highland Pond Management. We’ll evaluate the pond and put a treatment plan in place — fast.
We assist landowners throughout the Highland Lakes and Northwest Texas Hill Country: Kingsland, Marble Falls, Burnet, Llano, and surrounding areas in keeping their ponds clean, clear, and safe for both people and wildlife.
Whether its a fishing pond, swimming pond, or homestead feature — we have you covered.
Contact us today to schedule a service visit or seasonal algae assessment.
