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Up to 35% off sale on NOW! Limited time, limited stock. Ends Feb 23 unless sold out. We'll be closed Feb 19-21 inclusive. Dispatch delays may occur. Thanks for your patience.
Up to 35% off sale on NOW! Limited time, limited stock. Ends Feb 23 unless sold out. We'll be closed Feb 19-21 inclusive. Dispatch delays may occur. Thanks for your patience.

Pond Additives & Conditioners

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API Pond Algaefix 1.89L

Original price $119.00 - Original price $119.00
Original price
$119.00
$119.00 - $119.00
Current price $119.00

API® Pond AlgaeFix® controls many types of green or green water algae, string or hair algae, and blanketweed in ponds with live plants. This powerf...

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Original price $119.00 - Original price $119.00
Original price
$119.00
$119.00 - $119.00
Current price $119.00

Blue Planet Pond Clear Algae Control (Simazine) 2L

Original price $109.95
Original price $109.95 - Original price $109.95
Original price $109.95
Current price $93.45
$93.45 - $93.45
Current price $93.45
1 in stock.

Controls algae in freshwater ornamental fish ponds. Pond Clear will not affect pond plants or fish when used as directed.  When ponds are heavily i...

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Original price $109.95
Original price $109.95 - Original price $109.95
Original price $109.95
Current price $93.45
$93.45 - $93.45
Current price $93.45
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Seachem Pond Matrix 4L

Original price $79.95 - Original price $79.95
Original price
$79.95
$79.95 - $79.95
Current price $79.95
2 in stock.

Pond Matrix™ High capacity biofiltration Controls ammonia, nitrite, and nitrate Highly porous - enormous surface area (160,000 cm2/L) ...

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Original price $79.95 - Original price $79.95
Original price
$79.95
$79.95 - $79.95
Current price $79.95

API Pond Stress Coat

Original price $35.95 - Original price $109.95
Original price
$35.95 - $109.95
$35.95 - $109.95
Current price $35.95

API® Pond Stress Coat acts as a unique water conditioner that replaces the natural slime coating on the skin of your pond fish when it has been dam...

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Original price $35.95 - Original price $109.95
Original price
$35.95 - $109.95
$35.95 - $109.95
Current price $35.95

Blue Planet Pond Water Conditioner

Original price $32.95 - Original price $109.95
Original price $32.95 - Original price $109.95
Original price $32.95
$28.00 - $93.45
$28.00 - $93.45
Current price $28.00
2 in stock.

Makes tap water instantly safe for fish with added electrolytes for fish health. Rapidly conditions tap water, neutralizes chlorine and chloramines...

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Original price $32.95 - Original price $109.95
Original price $32.95 - Original price $109.95
Original price $32.95
$28.00 - $93.45
$28.00 - $93.45
Current price $28.00
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Blue Planet Pond Clear Water Clarifier 500ml

Original price $29.95 - Original price $29.95
Original price
$29.95
$29.95 - $29.95
Current price $29.95
1 in stock.

Blue Planet Pond Clear Water is formulated to clear hazy water and remove suspended particles from freshwater ponds. Clear Water bonds with these p...

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Original price $29.95 - Original price $29.95
Original price
$29.95
$29.95 - $29.95
Current price $29.95

Seachem Pond Stability 500ml

Original price $31.95
Original price $31.95 - Original price $31.95
Original price $31.95
Current price $27.15
$27.15 - $27.15
Current price $27.15
6 in stock.

Pond Stability® will rapidly and safely establish the pond biofilter in new ponds, thereby preventing fish deaths due to incomplete biofilter cycli...

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Original price $31.95
Original price $31.95 - Original price $31.95
Original price $31.95
Current price $27.15
$27.15 - $27.15
Current price $27.15
Save 15% Save %

Blagdon CleanPond 5 in 1 Filter Pods 6 Pack

Original price $30.95 - Original price $30.95
Original price
$30.95
$30.95 - $30.95
Current price $30.95

Quick and easy, 5-in-1 water treatment to tackle the most common pond problems. Effective against blanketweed/string algae, consumes sludge, makes ...

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Original price $30.95 - Original price $30.95
Original price
$30.95
$30.95 - $30.95
Current price $30.95

Blue Planet Pond Bio-Clean

Original price $48.95 - Original price $149.95
Original price
$48.95 - $149.95
$48.95 - $149.95
Current price $48.95
6 in stock.

Provides concentrated beneficial bacteria to clean pond water naturally. Starts and maintains intense biological activity remove toxic ammonia, nit...

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Original price $48.95 - Original price $149.95
Original price
$48.95 - $149.95
$48.95 - $149.95
Current price $48.95

Seachem Pond Clarigen 1L

Original price $62.95 - Original price $62.95
Original price
$62.95
$62.95 - $62.95
Current price $62.95
1 in stock.

Pond Clarigen™ is the ultimate clarifier for ponds. It employs an advanced polymeric flocculating agent that is pond safe. Pond Clarigen™ is the on...

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Original price $62.95 - Original price $62.95
Original price
$62.95
$62.95 - $62.95
Current price $62.95

Seachem Pond Flourish 500ml

Original price $28.95 - Original price $28.95
Original price
$28.95
$28.95 - $28.95
Current price $28.95
2 in stock.

Pond Flourish™ is a liquid growth stimulator for pond plant stems and leaves. It contains a broad spectrum of essential trace elements, vitamins, a...

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Original price $28.95 - Original price $28.95
Original price
$28.95
$28.95 - $28.95
Current price $28.95

Seachem Pond PhosGuard

Original price $44.95 - Original price $76.95
Original price $44.95 - Original price $76.95
Original price $44.95
$38.20 - $65.40
$38.20 - $65.40
Current price $38.20
5 in stock.

Pond PhosGuard™ is a non-herbicidal, environmentally sound approach to the problem of phosphate control in ponds. It is a filter adsorbent that rem...

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Original price $44.95 - Original price $76.95
Original price $44.95 - Original price $76.95
Original price $44.95
$38.20 - $65.40
$38.20 - $65.40
Current price $38.20
Save up to 15% Save %

Oliver Knott Pond Salt 1kg

Original price $32.95 - Original price $32.95
Original price
$32.95
$32.95 - $32.95
Current price $32.95
3 in stock.

Oliver Knott Pond Salt contains essential electrolytes and is mineral rich in calcium, magnesium and iron which can help improve water quality by r...

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Original price $32.95 - Original price $32.95
Original price
$32.95
$32.95 - $32.95
Current price $32.95

Seachem Pond Flourish Iron 500ml

Original price $28.95 - Original price $28.95
Original price
$28.95
$28.95 - $28.95
Current price $28.95
1 in stock.

Pond Flourish Iron™ is the companion product to Pond Flourish™ and Pond Flourish Tabs™. It is a complexed ferrous iron product that contains 10,000...

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Original price $28.95 - Original price $28.95
Original price
$28.95
$28.95 - $28.95
Current price $28.95

API Pondcare Plant Nutrient Spray 946ml

Original price $24.95 - Original price $24.95
Original price
$24.95
$24.95 - $24.95
Current price $24.95
2 in stock.

Plant nutrient spray provides all essential nutrients to nourish plants for strong and healthy growth. Promotes healthy leaves and bigger, brighter...

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Original price $24.95 - Original price $24.95
Original price
$24.95
$24.95 - $24.95
Current price $24.95