When it comes to controlling algae in your pond, not all products can be shipped everywhere. Some states have restrictions on certain algaecides due to environmental regulations. Before you place your order, it’s important to know what’s allowed in your area so you can plan effective algae management.
Algaecide Shipping Restrictions by State
| State/Region | Algae Defense | KnockDown | EasyKlear | Hydrothol | Cutrine |
|---|---|---|---|---|---|
| AK | X | X | X | X | X |
| CA | X | X | X | X | X |
| CT | X | X | X | X | X |
| DC | X | X | X | X | |
| DE | X | X | |||
| HI | X | X | X | X | X |
| MA | X | X | X | ||
| ME | X | X | X | X | X |
| NH | X | X | |||
| NJ | X | X | X | X | X |
| NY | X | X | X | X | X |
| RI | X | X | X | X | X |
| VT | X | X | X | X | |
| WA | X | X | X | X | X |
| Canada | X | X | X | X | X |
“X” indicates the product cannot be shipped to the state.
How to Get Rid of Algae in a Pond Naturally
If your state restricts the algaecide you want, don’t worry—you still have plenty of effective ways to manage algae naturally or mechanically. Here are some alternatives:
1. Mechanical Algae Removal
Tools like pond rakes and skimmers can help physically remove floating algae mats and bottom-growing Chara from your pond before it spreads. Consistent maintenance will reduce nutrient buildup, in turn inhibiting planktonic algae growth.
Recommended Solutions:
2. Beneficial Bacteria & Enzymes
Introducing bacteria and enzymes can break down excess nutrients and organic matter in your pond, starving algae of the nutrients it needs to thrive.
Recommended Solutions:
3. Pond Dye for Algae Control
Pond colorant blocks certain portions of the UV spectrum, inhibiting photosynthesis in nuisance algae. As a bonus, the rich tint beautifies pond water, accenting the surrounding landscape.
Recommended Solutions:
4. Pond Flocculants and Clarifiers
Natural water clarifiers or flocculants clump organic debris together so it sinks to the pond bottom. EcoBoost PRx contains naturally-derived pond flocculants that can help prevent algae from accessing excess nutrients like phosphorus. Similarly, natural barley straw releases clarifying compounds as it decays, but it is more effective in smaller ponds.
Recommended Solutions:
- EcoBoost PRx*
- Barley Straw Bales
*Get chemical-free water quality treatments without the guesswork with Airmax ClearPAC Plus to save money and time! ClearPAC Plus contains Nature’s Blue Pond Dye, EcoBoost PRx phosphate binder, and MuckAway and PondClear beneficial bacteria for lasting aquatic balance.
5. Aeration & Water Circulation
Proper water movement reduces stagnant areas where algae tend to thrive and promotes oxygenation, helping beneficial microbes compete with algae.
Recommended Solutions:
Find an Algae-Control Solution Tailored to Your Pond
Every pond is unique, and the right algae management strategy depends on your state regulations, pond size, and algae type. Take our Pond Quiz to receive a custom solution designed specifically for your pond’s needs. If you have additional pond-algae questions, contact us at 866-POND-HELP to connect with a knowledgeable pond coach.
Read more about controlling algae in ponds, lakes, and water gardens in these related guides:
Water Garden Algae Control: Remove & Prevent Blooms
Is Pond Algaecide Safe for Fish?
Use Only EPA-Approved Chemicals for Ponds
How Officials Control Harmful Algal Blooms (HABs)
Treating Algae With Algaecides
Last Updated: December 4, 2025