Skip to site navigation Skip to main content
main content
  1. Home
  2. Marketplace
  3. Pets & animals
  4. Fish
  5. Water treatment

Water treatment

Search Results

Showing 1,128 results

Card display mode (optional)
Advertisement
Advertisement
Advertisement
Advertisement
Bay of Plenty
Closes: Tue, 6 May
API Stress Coat 237ml

$15.00 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$22.99
Loading Image 1 of 1
Image 1 of 1
Bay of Plenty
Closes: Tue, 6 May
Pristine 100mL

$15.00 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$20.99
Loading Image 1 of 1
Image 1 of 1
Bay of Plenty
Closes: Tue, 6 May
API Pimafix 237mL

$15.00 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$37.98
Loading Image 1 of 1
Image 1 of 1
Bay of Plenty
Closes: Tue, 6 May
API Stress Zyme 237mL

$15.00 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$33.99
Loading Image 1 of 1
Image 1 of 1
Bay of Plenty
Closes: Tue, 6 May
API Stress Zyme 118mL

$15.00 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$20.99
Loading Image 1 of 1
Image 1 of 1
Bay of Plenty
Closes: Tue, 6 May
AF Red Boost

$15.00 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$19.95
Loading Image 1 of 1
Image 1 of 1
Bay of Plenty
Closes: Tue, 6 May
Jackfruit Leaves

$15.00 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$15.90
Loading Image 1 of 1
Image 1 of 1
Bay of Plenty
Closes: Tue, 6 May
Clarity 500mL

$15.00 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$62.99
Loading Image 1 of 1
Image 1 of 1
Bay of Plenty
Closes: Tue, 6 May
Bamboo Leaves

$15.00 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$10.99
Auckland
Closes: Sat, 3 May
Aqua One pH Stabiliser Conditioning Block 20g

$6.95 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$10.50
Auckland
Closes: Sat, 3 May
Seachem SeaGel 100ml

$6.95 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$19.99
Auckland
Closes: Sat, 3 May
Seachem Nutridiet Betta Premium Food 30g

$6.95 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$13.50
Auckland
Closes: Sat, 3 May
API Aquarium Stress Zyme 946ml

$6.95 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$98.99
Auckland
Closes: Tue, 6 May
Flourish Potassium 250mL - Seachem
SALE! WAS $27.95 NOW $25.16 ENDS 8/5/25

Shipping from $6.00

Buy Now
$27.95
$25.16
Save 10%
Hawke's Bay
Closes: Tue, 6 May
API Reef Master Test Kit

$7.99 shipping nationwide

Expected delivery in 1-2 business days

Buy Now
$129.99
Auckland
Closes: Tue, 6 May
High Accurately Digital Thermometer Hygrometer Meter for Reptile

Free shipping nationwide

Expected delivery in 8-15 business days

Options available
Buy Now
$23.99
Auckland
Closes: Tue, 6 May
Discus Trace 500mL
SALE! WAS $49.95 NOW $44.96 ENDS 8/5/25

Shipping from $6.00

Buy Now
$49.95
$44.96
Save 10%
Auckland
Closes: Sat, 3 May
Methylene Blue - 50ml

Shipping from $2.00

No reserve
$10.95
Buy Now
$10.95
Canterbury
Closes: Tue, 6 May
Flourish Excel-Kills Black, Hair,Beard Algae 250ml

Shipping from $6.50

No reserve
$27.95
Buy Now
$27.95
Canterbury
Closes: Tue, 6 May
Pondcare Algaefix 473ml

Shipping from $9.98

No reserve
$54.95
Buy Now
$54.95
Canterbury
Closes: Tue, 6 May
Flourish Comprehensive Supplement - 500ml

Shipping from $9.98

No reserve
$41.95
Buy Now
$41.95
Canterbury
Closes: Tue, 6 May
Seachem - Prime Water Conditioner 500ml

Shipping from $9.98

No reserve
$57.95
Buy Now
$57.95
Canterbury
Closes: Tue, 6 May
Red Sea NO3:PO4-X Algae Management 500ml (SPECIAL)

Shipping from $9.98

No reserve
$20.00
Buy Now
$20.00
Auckland
Closes: Tue, 6 May
40pcs Bio balls / Aquarium Fish Tank Filter Media

$8.00 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$7.00
Auckland
Closes: Tue, 6 May
Methylene Blue 1% -1L - (Wunder) Aquatic Medication
SALE! WAS $105.00 NOW $94.50 ENDS 8/5/25

Free shipping nationwide

Expected delivery in 3-5 business days

Buy Now
$105.00
$94.50
Save 10%
Hawke's Bay
Closes: Tue, 6 May
Seachem Stress Guard

$7.99 shipping nationwide

Expected delivery in 1-2 business days

Buy Now
$33.99
Auckland
Closes: Sat, 3 May
Clearance! $80.00 for TLC Aquariums for saltwater 4L
No reserve
$80.00
Buy Now
$80.00
Auckland
Closes: Sat, 3 May
API Calcium Test - Salt ^69L

Shipping from $2.00

No reserve
$41.99
Buy Now
$41.99
Auckland
Closes: Sat, 3 May
API Bio-Chem Zorb 283g

$6.95 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$43.99
Auckland
Closes: Sat, 3 May
Seachem Pristine 250ml

$6.95 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$38.99
Manawatu
Closes: Tue, 6 May
Fish tank O2 pump
No reserve
$20.00
Buy Now
$25.00
Auckland
Closes: Sat, 3 May
Seachem Flourish Iron 250ml

$6.95 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$27.99
Auckland
Closes: Sat, 3 May
Seachem Reef Carbonate 500ml

$6.95 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$27.99
Auckland
Closes: Sat, 3 May
API Fish Antibacterial Medication Melafix 237ml

Free shipping nationwide

Expected delivery in 3-4 business days

Buy Now
$42.99
Auckland
Closes: Sat, 3 May
API Aquarium Start Up Pack (Stress Coat 30ml+ Quick Start 30ml)

$6.95 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$15.99
Auckland
Closes: Sat, 3 May
Seachem Reef Strontium 500ml

Free shipping nationwide

Expected delivery in 3-4 business days

Buy Now
$52.99
Auckland
Closes: Sat, 3 May
Seachem Flourish Aquatic Plant Fertilizer 250ml

Free shipping nationwide

Expected delivery in 3-4 business days

Buy Now
$33.99
Auckland
Closes: Sat, 3 May
Seachem Betta Basics Fish Water Conditioner 60ml

$6.95 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$10.99
Auckland
Closes: Sat, 3 May
Seachem Neutral Regulator 250gm Adjusts PH to 7

Free shipping nationwide

Expected delivery in 3-4 business days

Buy Now
$35.99
Auckland
Closes: Sat, 3 May
API POND Stresscoat Water Conditioner 473ml

Free shipping nationwide

Expected delivery in 3-4 business days

Buy Now
$54.99
Auckland
Closes: Sat, 3 May
API Nitrate Test - Fresh & Salt Water 90 Tests

Free shipping nationwide

Expected delivery in 3-4 business days

Buy Now
$45.99
Auckland
Closes: Sat, 3 May
Seachem PhosGuard 100ml

Free shipping nationwide

Expected delivery in 3-4 business days

Buy Now
$27.99
Auckland
Closes: Sat, 3 May
Seachem Alert - Ammonia

$6.95 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$29.99
Auckland
Closes: Sat, 3 May
Seachem Pristine 250ml

Free shipping nationwide

Expected delivery in 3-4 business days

Buy Now
$44.99
Auckland
Closes: Sat, 3 May
Wunder Algae Remover 1L

Free shipping nationwide

Expected delivery in 3-4 business days

Buy Now
$43.99
Auckland
Closes: Sat, 3 May
Aqua One Ammonia Remover/Chlorine Neutraliser 150ml

$6.95 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$21.50
Auckland
Closes: Sat, 3 May
Seachem Nutridiet Betta Premium Food 30g

$6.95 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$13.50
Auckland
Closes: Sat, 3 May
API CO2 Booster 237ml

Free shipping nationwide

Expected delivery in 3-4 business days

Buy Now
$36.99
Auckland
Closes: Sat, 3 May
Seachem Reef Advantage Calcium 250g

Free shipping nationwide

Expected delivery in 3-4 business days

Buy Now
$42.99
Auckland
Closes: Sat, 3 May
Seachem Pristine 100ml

Free shipping nationwide

Expected delivery in 3-4 business days

Buy Now
$24.99
Auckland
Closes: Sat, 3 May
API pH Test & Adjuster Kit - Freshwater

$6.95 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$39.99
Auckland
Closes: Sat, 3 May
Aqua One pH Stabiliser Conditioning Block 20g

$6.95 shipping nationwide

Expected delivery in 2-3 business days

Buy Now
$10.50
Auckland
Closes: Sat, 3 May
Seachem Reef Fusion 1 - 500ml

Free shipping nationwide

Expected delivery in 3-4 business days

Buy Now
$41.99
Auckland
Closes: Sat, 3 May
Seachem Stability Fish Beneficial Bacteria 250ml

Free shipping nationwide

Expected delivery in 3-4 business days

Buy Now
$38.99
Auckland
Closes: Sat, 3 May
Seachem Reef Carbonate 250ml

Free shipping nationwide

Expected delivery in 3-4 business days

Buy Now
$25.99
Auckland
Closes: Sat, 3 May
Seachem Clarity Aquarium Water Clarifier 100ml

Free shipping nationwide

Expected delivery in 3-4 business days

Buy Now
$22.50
We are upgrading some of our systems
Learn more