API Pond EcoFix – 1 Gallon (Natural Sludge Reducer & Water Clarifier)
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Description
API Pond EcoFix Sludge Destroyer (1 Gallon, SKU 3147) is a highly concentrated, all-natural beneficial bacteria formula that breaks down pond sludge, reduces organic waste buildup, and improves water clarity. EcoFix targets the accumulation of fish waste, dead algae, leaves, and grass clippings that settle on pond bottoms and clog filters — converting organic matter into harmless byproducts while simultaneously increasing dissolved oxygen levels in the water.
The 1-gallon bottle treats up to 22,000 gallons of pond water. Use at spring start-up and end of season: 4 tablespoons per 250 gallons, twice a week for 2 weeks for initial or deep-clean treatment. Switch to 2 tablespoons per 250 gallons every two weeks for ongoing maintenance. Can be used in both fresh water and ponds containing salt. Safe for all fish, aquatic plants, wildlife, and mammals that drink from treated water. For over 50 years, API has developed research-driven pond care solutions trusted by pond owners worldwide.
Key Features & Benefits
Technical Specifications
| Specification | Value |
|---|---|
| SKU (PPD) | 3147 |
| Official Product Name | API POND ECOFIX SLUDGE DESTROYER |
| Size | 1 Gallon (128 oz) |
| Coverage — 1 Gallon | Treats up to 22,000 U.S. gallons |
| Mode of Action | All-natural, highly-concentrated beneficial bacteria |
| Targets | Fish waste, dead algae, leaves, grass clippings, organic sludge |
| Initial / Spring / End-of-Season Dose | 4 tbsp (60 ml) per 250 gallons, twice a week for 2 weeks |
| Maintenance Dose | 2 tbsp (30 ml) per 250 gallons, every 2 weeks |
| Salt Compatibility | Suitable for standard garden ponds and ponds containing salt |
| Fish Safety | Safe for all fish, aquatic plants, and wildlife |
| Mammal Safety | Will not harm mammals if they drink from treated water |
| Algae Control | Does NOT kill algae — use API AlgaeFix for algae control |
| Application | Liquid — use included dosing cap on bottle; shake well first |
| Suitable For | Garden ponds, koi ponds, water gardens, multi-feature systems |
Dosing Guide
| Treatment Phase | Dose per 250 Gallons | Frequency | Duration |
|---|---|---|---|
| Spring Start-Up / End of Season | 4 tbsp (60 ml) | Twice a week | 2 weeks |
| Quick Clean-Up | 4 tbsp (60 ml) | Twice a week | 2 weeks |
| Regular Maintenance | 2 tbsp (30 ml) | Every 2 weeks | Ongoing |
Use the included dosing cap on the bottle for accurate measurements. Add directly to pond near active water circulation (pump intake or waterfall) for best distribution. Shake well before each use. Improved aeration is recommended when treating ponds with significant organic buildup.
API EcoFix Size Options
| Size | Coverage | Best For |
|---|---|---|
| 16 oz | Up to 4,000 gallons | Small ponds, first-time trial |
| 64 oz | Up to 16,000 gallons | Medium ponds, seasonal use |
| 1 Gallon ← This | Up to 22,000 gallons | Large ponds, best seasonal value |
Frequently Asked Questions
How does API Pond EcoFix Sludge Destroyer work naturally?
API Pond EcoFix contains a highly concentrated blend of all-natural beneficial bacteria — the same types of microorganisms found in healthy, naturally balanced pond ecosystems. These bacteria consume fish waste, dead algae, decaying leaves, and other organic matter that accumulates on the pond bottom, converting solid waste into harmless, water-soluble compounds. As the sludge layer is digested, biological oxygen demand decreases and dissolved oxygen levels rise — directly benefiting fish health. The result is cleaner water, less muck buildup, and reduced maintenance frequency throughout the season.
What is the total coverage for the 1-Gallon API EcoFix bottle?
The 1-gallon API EcoFix bottle treats up to 22,000 U.S. gallons of pond water. For context across the product family: the 16 oz bottle treats up to 4,000 gallons, and the 64 oz bottle treats up to 16,000 gallons. The 1-gallon size provides the best value per gallon of pond water treated and is ideal for large koi ponds, water gardens with multiple features, and pond owners who use EcoFix on a consistent seasonal schedule.
Is API EcoFix safe for koi, goldfish, and surrounding wildlife?
Yes — API EcoFix is 100% all-natural and completely safe for all fish (including sensitive koi), aquatic plants, birds, and wildlife. API has confirmed it will not harm mammals that drink from treated water. Because EcoFix uses beneficial bacteria rather than synthetic chemicals, algaecides, or oxidizers, there is no risk of chemical toxicity or residual buildup in the pond ecosystem. It is also compatible with salted ponds, making it suitable for koi ponds where pond salt is used for fish health management.
Does EcoFix help increase dissolved oxygen in the pond?
Yes — this is one of EcoFix's most meaningful secondary benefits. Organic sludge creates biological oxygen demand (BOD): as organic matter decomposes, bacteria in the anaerobic sludge layer consume dissolved oxygen, reducing the amount available to fish. By breaking down and eliminating the sludge layer, EcoFix directly reduces BOD and restores dissolved oxygen to the levels fish need. This benefit is especially important during summer heat waves when warm water naturally holds less dissolved oxygen, and fish are already under increased stress.
How often should I apply the 1-Gallon EcoFix for maintenance?
API EcoFix follows a two-phase treatment protocol:
- Initial / Spring start-up / End-of-season treatment: Add 4 tablespoons (60 ml) per 250 gallons of pond water, twice a week for 2 weeks. This intensive phase establishes a strong bacterial colony and addresses accumulated sludge.
- Regular maintenance: Add 2 tablespoons (30 ml) per 250 gallons, every 2 weeks throughout the season to maintain a healthy bacterial population and prevent re-accumulation.
Use the dosing cap included on the bottle for accurate measurement. Add EcoFix near a pump intake or waterfall return for thorough distribution. Aeration during treatment improves bacterial performance.
Can I use API EcoFix in cold water during the winter?
EcoFix bacterial activity slows as water temperatures drop, as with all beneficial bacteria. API recommends using EcoFix through the main pond season (spring, summer, fall) when water temperatures support active bacterial growth. For end-of-season treatment before temperatures drop significantly, apply the full initial dose protocol (twice a week for two weeks) to clear accumulated sludge before winter. Resume treatment in early spring at pond opening. In very cold water, the bacteria remain viable but largely dormant until temperatures warm.
Why Buy from Pond Pro Direct?
- Authentic API products — fresh, genuine inventory
- Expert pond treatment guidance — call or text (765) 508-4352, Mon–Fri 9am–5pm EST
- Free shipping on all orders
- Price match guarantee on identical products
- 30-day return period on eligible items
Price Match
At Pond Pro Direct, we want you to shop with confidence, knowing you’re always getting a good deal.
We will match or beat the lowest online price on its products.
If you find a lower price for any products on our store, we will beat it by $50 for products listed over $2000. In order to be eligible, you must provide proof, whether a screenshot, invoice, email, etc. of the lower offer.
Please note that this does not apply to every product in the store, so reach out via email or chat for confirmation before purchasing.
For the policy to apply, simply send us a screenshot, link, or any other proof of the lower price.
For more information, please check out Price Match Policy Page
Shipping & Delivery
Order Processing
Orders are processed within 1–5 business days, depending on product type, brand, and fulfillment method. Products sold on Pond Pro Direct ship directly from manufacturers or authorized distribution partners and do not ship from a single centralized warehouse.
Processing times may vary by brand, item type, fulfillment method, and whether an item is made to order or ships via freight.
Order Confirmation
After placing your order, you will receive an order confirmation email confirming that we have received your order and pre-authorized your payment method.
Once your order is received, we contact the manufacturer or distribution partner to confirm availability and fulfillment timelines.
- If an item is unavailable or on backorder, we will notify you by email and void the pre-authorization.
- If the item is available, the payment will be processed and the order submitted for shipment.
Order Shipment
If your order is in stock and payment is processed, it will typically ship within 6–13 business days. Once your order ships, tracking information (when available) will be sent to the email address provided at checkout.
If you do not receive shipping confirmation within 6 business days, please contact us at support@pondprodirect.com.
Shipping Destinations
At this time, we primarily ship within the United States. Some products may be available for shipment to Canada. If the website allows checkout and accepts your shipping address, the product is eligible for delivery to that location.
Changing Your Shipping Address
Address changes after an order has been processed or shipped may result in delays or additional carrier fees. Any carrier charges associated with address changes are the responsibility of the customer.
Shipping Times
All shipping times are estimates only and not guarantees.
- Typical handling time: 1–5 business days
- Typical transit time after shipment: 5–8 business days
- Estimated delivery window: 6–13 business days
Delivery timelines may vary based on brand, item type, production status, freight requirements, and carrier availability.
If an order is cancelled after it has been processed or shipped, the customer may be responsible for applicable shipping charges, freight fees, carrier return fees, and warehouse handling costs, where applicable.
Shipping Options
Available shipping options vary by product and location.
Our standard Curbside Delivery option is provided at no additional cost where applicable and delivers the item to the curbside or driveway of the delivery address.
Additional options, such as Threshold Delivery or White Glove Delivery, may be available for select products and locations.
For full details regarding freight delivery, inspection requirements, liftgate service, returns, and customer responsibilities, please review our full Shipping Policy page.
Returns & Refunds
Cancellations & Refunds
Orders may be canceled free of charge before shipment, unless the item is classified as Custom or Made-to-Order (see below).
If you have questions about your order, please contact us at support@pondprodirect.com or call (765) 508-4352 during business hours.
Cancellations (Before Order Ships)
If you need to cancel an order before it ships, please contact us as soon as possible. Orders canceled prior to shipment are eligible for a full refund.
You can reach our team by phone at (765) 508-4352, via live chat on our website, or by email at support@pondprodirect.com.
Cancellations (After Order Ships)
Once an order has shipped or entered fulfillment, it may no longer be eligible for cancellation. If you no longer wish to keep the item, you must wait until delivery and then request a return.
A Return Merchandise Authorization (RMA) is required before returning any item.
Custom or Made-to-Order Items
Custom or made-to-order products are produced specifically for your order and cannot be canceled or refunded once production has begun, except in cases of defect or error.
Product pages will clearly indicate when an item is custom or made-to-order. If you are unsure whether an item falls into this category, please contact us before placing your order.
Returns & Refunds
Returns are subject to the following conditions:
- Customers have 30 days from delivery to request a return, unless otherwise stated on the product page or by manufacturer policy
- Items must be unused, uninstalled, and in original packaging
- An RMA is required prior to returning any item
Because we ship products directly from manufacturers, return eligibility may vary by brand. If a manufacturer does not permit returns on a specific product, we may be unable to accept the return. Please contact us if you would like confirmation of return eligibility for a specific item.
Fees & Shipping Costs
- Return shipping costs are the responsibility of the customer unless the item is defective or shipped in error
- Freight / LTL shipments may incur higher return shipping costs due to carrier fees
- Approved returns of non-defective items may be subject to a restocking fee of up to 25%
- Original outbound shipping charges are non-refundable
If you are exchanging an item rather than returning it outright, we may be able to assist with some costs depending on the product and manufacturer.
For full details, including freight deliveries, damage reporting requirements, and manufacturer-specific terms, please review our complete Return and Refund Policy
