Water Tests & Treatment | Surplus Network

API Freshwater Master Test Kit

API Freshwater Master Test Kit

$28.00 USD

API Freshwater Master Test Kit

$28.00 USD

Seachem Laboratories Prime Ammonia Detoxifier (Each Sold Separately)

Seachem Laboratories Prime Ammonia...

$6.59 USD

Seachem Laboratories Prime Ammonia...

$6.59 USD

Seachem Prime

$7.95 USD

$7.95 USD

Hikari Aquarium Solutions Prazipro Water Treatment

Hikari Aquarium Solutions Prazipro...

$7.95 USD

Hikari Aquarium Solutions Prazipro...

$7.95 USD

Seachem Stability for Marine & Freshwater Aquariums (Each Sold Separately)

Seachem Stability for Marine &...

$7.95 USD

Seachem Stability for Marine &...

$7.95 USD

Seachem Stress Guard

Seachem Stress Guard

$8.99 USD

Seachem Stress Guard

$8.99 USD

2x Seachem Prime Fresh and Saltwater Conditioner 100 ml

2x Seachem Prime Fresh and Saltwater...

$8.99 USD

2x Seachem Prime Fresh and Saltwater...

$8.99 USD

Seachem Flourish Potassium

Seachem Flourish Potassium

$8.99 USD

Seachem Flourish Potassium

$8.99 USD

API FRESH WATER MASTER TEST KIT, OVER 800 TESTS, SEALED, NEW! Exp 12/2026 & UP!

API FRESH WATER MASTER TEST KIT, OVER...

$34.90 USD

API FRESH WATER MASTER TEST KIT, OVER...

$34.90 USD

Seachem Stability

Seachem Stability

$7.99 USD

Seachem Stability

$7.99 USD

Seachem Laboratories Flourish Excel Aquarium Plant Supplement (Sold Separately)

Seachem Laboratories Flourish Excel...

$6.95 USD

Seachem Laboratories Flourish Excel...

$6.95 USD

Seachem Flourish Aquarium Plant Supplement (Each Sold Separately)

Seachem Flourish Aquarium Plant...

$6.95 USD

Seachem Flourish Aquarium Plant...

$6.95 USD

API GH & KH Test Kit

API GH & KH Test Kit

$12.49 USD

API GH & KH Test Kit

$12.49 USD

SEACHEM PRIME DECHLORINATOR AMMONIA NITRATE REMOVER AQUARIUM WATER FISH TANK

SEACHEM PRIME DECHLORINATOR AMMONIA...

$10.49 USD

SEACHEM PRIME DECHLORINATOR AMMONIA...

$10.49 USD

FRITZZYME 7 NITRYIFYING BACTERIA FRESHWATER CYCLE FRITZ ZYME 8OZ 16OZ 32OZ 1GAL

FRITZZYME 7 NITRYIFYING BACTERIA...

$10.49 USD

FRITZZYME 7 NITRYIFYING BACTERIA...

$10.49 USD

API Ammonia Test Kit 130 Tests for Freshwater and Marine Aquariums NH3 / NH4

API Ammonia Test Kit 130 Tests for...

$13.00 USD

API Ammonia Test Kit 130 Tests for...

$13.00 USD

HI774-25 Ultra Low Range Phosphate Checker Reagents - Hanna Instruments

HI774-25 Ultra Low Range Phosphate...

$13.00 USD

HI774-25 Ultra Low Range Phosphate...

$13.00 USD

HI736-25 Phosphorus Ultra Low Range Marine Reagent (25 Tests) - Hanna Instrument

HI736-25 Phosphorus Ultra Low Range...

$13.00 USD

HI736-25 Phosphorus Ultra Low Range...

$13.00 USD

Freshwater GOLD! Instantly establish 5 gal tank! Daphnia+ Scuds+ blackworm+MORE!

Freshwater GOLD! Instantly establish...

$29.99 USD

Freshwater GOLD! Instantly establish...

$29.99 USD

7 in 1 Aquarium Test Kit 100Pcs Pond Test Strips Freshwater Saltwater Fish Tank

7 in 1 Aquarium Test Kit 100Pcs Pond...

$10.88 USD

7 in 1 Aquarium Test Kit 100Pcs Pond...

$10.88 USD

Seachem PRIME AQUARIUM Water Conditioner FISH TANK DECHLORINATOR Ammonia Remover

Seachem PRIME AQUARIUM Water...

$11.18 USD

Seachem PRIME AQUARIUM Water...

$11.18 USD

All-For-Reef Powder (800g) - Tropic Marin

All-For-Reef Powder (800g) - Tropic...

$47.18 USD

All-For-Reef Powder (800g) - Tropic...

$47.18 USD

Seachem Ammonia Alert Fish Tank Aquarium Testing Maintenance

Seachem Ammonia Alert Fish Tank...

$8.50 USD

Seachem Ammonia Alert Fish Tank...

$8.50 USD

Seachem Flourish Trace

Seachem Flourish Trace

$10.89 USD

Seachem Flourish Trace

$10.89 USD

100/50x Aquarium Test Strips Fish Tank 7 in1 PH Water Test Strips Kit Freshwater

100/50x Aquarium Test Strips Fish...

$9.99 USD

100/50x Aquarium Test Strips Fish...

$9.99 USD

MicroBacter7 - Complete Bioculture - Brightwell Aquatics

MicroBacter7 - Complete Bioculture -...

$9.99 USD

MicroBacter7 - Complete Bioculture -...

$9.99 USD

API PH Test Kit

API PH Test Kit

$9.99 USD

API PH Test Kit

$9.99 USD

3 PACK Seachem Ammonia Alert Monitors Ammonia Levels in Marine Freshwater

3 PACK Seachem Ammonia Alert Monitors...

$13.95 USD

3 PACK Seachem Ammonia Alert Monitors...

$13.95 USD

Seachem Prime 250mL Fish Tank Aquarium Water Conditioner Treatment

Seachem Prime 250mL Fish Tank...

$13.95 USD

Seachem Prime 250mL Fish Tank...

$13.95 USD

API TAP WATER CONDITIONER Aquarium Water Conditioner 16-Ounce Bottle

API TAP WATER CONDITIONER Aquarium...

$10.93 USD

API TAP WATER CONDITIONER Aquarium...

$10.93 USD

Salifert Magnesium Test Kit- Free US Shipping

Salifert Magnesium Test Kit- Free US...

$21.99 USD

Salifert Magnesium Test Kit- Free US...

$21.99 USD

API Saltwater Master Test Kit Marine pH Ammonia Nitrite Nitrate Multi Test Kit

API Saltwater Master Test Kit Marine...

$35.99 USD

API Saltwater Master Test Kit Marine...

$35.99 USD

API Freshwater Master Test Kit 800+ Fresh Water Tests pH Ammonia Nitrate Nitrite

API Freshwater Master Test Kit 800+...

$35.99 USD

API Freshwater Master Test Kit 800+...

$35.99 USD

Tetra 16172 AquaSafe Fish Tank Water Conditioner, 8.45 fl oz

Tetra 16172 AquaSafe Fish Tank Water...

$8.71 USD

Tetra 16172 AquaSafe Fish Tank Water...

$8.71 USD

Seachem Flourish

Seachem Flourish

$8.69 USD

Seachem Flourish

$8.69 USD

API Accu-Clear (8oz) Fish Tank Aquarium Additive Treatment Water Conditioner

API Accu-Clear (8oz) Fish Tank...

$12.59 USD

API Accu-Clear (8oz) Fish Tank...

$12.59 USD

API Quick-Start Add Your Fish Today 32oz treats 940 gal

API Quick-Start Add Your Fish Today...

$31.76 USD

API Quick-Start Add Your Fish Today...

$31.76 USD

Seachem Alerts Combo Pack Ammonia & pH

Seachem Alerts Combo Pack Ammonia & pH

$12.99 USD

Seachem Alerts Combo Pack Ammonia & pH

$12.99 USD

API Stress Coat 8oz Protects Fish Makes Tap Water Safe for Marine & Freshwater

API Stress Coat 8oz Protects Fish...

$12.99 USD

API Stress Coat 8oz Protects Fish...

$12.99 USD

Seachem Neutral Regulator Aquarium Water Treatment 250gm/8.8oz

Seachem Neutral Regulator Aquarium...

$11.95 USD

Seachem Neutral Regulator Aquarium...

$11.95 USD

Seachem Flourish Potassium

Seachem Flourish Potassium

$11.95 USD

Seachem Flourish Potassium

$11.95 USD

Seachem Laboratories Flourish Trace Aquarium Plant Supplement

Seachem Laboratories Flourish Trace...

$11.95 USD

Seachem Laboratories Flourish Trace...

$11.95 USD

Aqueon Aquarium Fish Tank Water Conditioner Bottle, 16 ounces FREE SHIPPING.

Aqueon Aquarium Fish Tank Water...

$5.99 USD

Aqueon Aquarium Fish Tank Water...

$5.99 USD

API 5 in 1 Aquarium Test Strips for Freshwater and Saltwater Aquariums

API 5 in 1 Aquarium Test Strips for...

$6.98 USD

API 5 in 1 Aquarium Test Strips for...

$6.98 USD

API Pond Care Wide Range pH Test Kit

API Pond Care Wide Range pH Test Kit

$6.50 USD

API Pond Care Wide Range pH Test Kit

$6.50 USD

Tetra AquaSafe Plus Water Conditioner & Dechlorinator, 33.8 oz...

Tetra AquaSafe Plus Water Conditioner...

$14.64 USD

Tetra AquaSafe Plus Water Conditioner...

$14.64 USD

Tetra AquaSafe Fish Tank Water Conditioner Aquarium Water Treatment 8.45 Fl oz

Tetra AquaSafe Fish Tank Water...

$6.82 USD

Tetra AquaSafe Fish Tank Water...

$6.82 USD

HI755-26 HI772-26 Alkalinity Checker Reagent (25 Tests) - Hanna Instruments

HI755-26 HI772-26 Alkalinity Checker...

$15.00 USD

HI755-26 HI772-26 Alkalinity Checker...

$15.00 USD

API Quick Start Freshwater and Saltwater Aquarium 8 oz. Expires 02/2026 SEALED

API Quick Start Freshwater and...

$14.95 USD

API Quick Start Freshwater and...

$14.95 USD

API POND WIDE RANGE pH TEST KIT 160-Test Pond Water Test Kit

API POND WIDE RANGE pH TEST KIT...

$12.98 USD

API POND WIDE RANGE pH TEST KIT...

$12.98 USD

Caribsea Purple Up 8 OZ Coraline Algae Accelerator

Caribsea Purple Up 8 OZ Coraline...

$14.06 USD

Caribsea Purple Up 8 OZ Coraline...

$14.06 USD

HI782-25 Nitrate High Range Reagents (25 tests) - Hanna Instruments

HI782-25 Nitrate High Range Reagents...

$16.00 USD

HI782-25 Nitrate High Range Reagents...

$16.00 USD

Seachem Laboratories Acid Buffer Aquarium Water Treatment

Seachem Laboratories Acid Buffer...

$19.95 USD

Seachem Laboratories Acid Buffer...

$19.95 USD

API QUICK START (16oz) Nitrifying Cycle Bacteria Fish Tank Aquarium Additive

API QUICK START (16oz) Nitrifying...

$20.94 USD

API QUICK START (16oz) Nitrifying...

$20.94 USD

ReefHD Reef Flux

ReefHD Reef Flux

$18.45 USD

ReefHD Reef Flux

$18.45 USD

API pH Down For Freshwater Aquariums Safe For Fish & Plants 1.25-Ounce Bottle

API pH Down For Freshwater Aquariums...

$8.81 USD

API pH Down For Freshwater Aquariums...

$8.81 USD

API Replacement Test Tubes for Aquarium Test Kits 6 Pack Bundle

API Replacement Test Tubes for...

$13.89 USD

API Replacement Test Tubes for...

$13.89 USD

Brightwell Aquatics Microbacter7

Brightwell Aquatics Microbacter7

$13.89 USD

Brightwell Aquatics Microbacter7

$13.89 USD

Aqueon Water Clarifier - 16 Ounce (3 Pack)

Aqueon Water Clarifier - 16 Ounce (3...

$27.07 USD

Aqueon Water Clarifier - 16 Ounce (3...

$27.07 USD

Fritz Turbo Start 900 (Saltwater) 1oz

Fritz Turbo Start 900 (Saltwater) 1oz

$16.99 USD

Fritz Turbo Start 900 (Saltwater) 1oz

$16.99 USD

Hikari Prazipro 16oz

Hikari Prazipro 16oz

$43.95 USD

Hikari Prazipro 16oz

$43.95 USD

Ap Stress Coat 1Gal

Ap Stress Coat 1Gal

$57.22 USD

Ap Stress Coat 1Gal

$57.22 USD

API Stress Zyme 1 gallon Aquarium Water Cleaner and Active Bio Filter Supporter

API Stress Zyme 1 gallon Aquarium...

$66.99 USD

API Stress Zyme 1 gallon Aquarium...

$66.99 USD

API TAP WATER CONDITIONER 64oz : Free U.S Shipping- Same Day Processing Time

API TAP WATER CONDITIONER 64oz :...

$39.48 USD

API TAP WATER CONDITIONER 64oz :...

$39.48 USD

Seachem Safe Dry Water Conditioner- Ammonia Detoxifier

Seachem Safe Dry Water Conditioner-...

$15.95 USD

Seachem Safe Dry Water Conditioner-...

$15.95 USD

API Fungus Cure 1 Each/4 Oz By API

API Fungus Cure 1 Each/4 Oz By API

$10.67 USD

API Fungus Cure 1 Each/4 Oz By API

$10.67 USD

Tetra EasyStrips 6-in-1 Aquarium Test Strips, 25 Strips

Tetra EasyStrips 6-in-1 Aquarium Test...

$9.00 USD

Tetra EasyStrips 6-in-1 Aquarium Test...

$9.00 USD

Fluval Cycle Biological Enhancer

Fluval Cycle Biological Enhancer

$10.99 USD

Fluval Cycle Biological Enhancer

$10.99 USD

Seachem PRIME AQUARIUM Water Conditioner FISH TANK DECHLORINATOR Ammonia Remover

Seachem PRIME AQUARIUM Water...

$10.99 USD

Seachem PRIME AQUARIUM Water...

$10.99 USD

Acurel F25 Millimeter Water Clarifier, Aquarium, Treats 265 Gallons

Acurel F25 Millimeter Water...

$7.21 USD

Acurel F25 Millimeter Water...

$7.21 USD

6 in 1 Aquarium Test Kit 100Pcs Test Strips Freshwater Saltwater Fish Tank

6 in 1 Aquarium Test Kit 100Pcs Test...

$10.50 USD

6 in 1 Aquarium Test Kit 100Pcs Test...

$10.50 USD

Marineland Water Clarifier 4oz(118ml). Freshwater Aquarium Treats 237gls

Marineland Water Clarifier...

$5.95 USD

Marineland Water Clarifier...

$5.95 USD

Seachem Flourish Aquarium Fertilizer 250ml

Seachem Flourish Aquarium Fertilizer...

$11.99 USD

Seachem Flourish Aquarium Fertilizer...

$11.99 USD

Seachem Prime Fresh and Saltwater Conditioner - Chemical Remover and Detoxifier

Seachem Prime Fresh and Saltwater...

$8.76 USD

Seachem Prime Fresh and Saltwater...

$8.76 USD

API QUICK START (4oz) Nitrifying Cycle Bacteria Fish Tank Aquarium Additive

API QUICK START (4oz) Nitrifying...

$12.12 USD

API QUICK START (4oz) Nitrifying...

$12.12 USD

API Stress Coat 8oz Water Conditioner Protects Fish Makes Tap Water Safe

API Stress Coat 8oz Water Conditioner...

$12.12 USD

API Stress Coat 8oz Water Conditioner...

$12.12 USD

PraziPro Parasite Treatment for Aquarium /Pond All Sizes / BULK PRICES INSIDE !

PraziPro Parasite Treatment for...

$7.94 USD

PraziPro Parasite Treatment for...

$7.94 USD

GlasGarten Bacter AE Micro Powder/Water Additive For Shrimp Tanks CRS Bee Cherry

GlasGarten Bacter AE Micro...

$14.99 USD

GlasGarten Bacter AE Micro...

$14.99 USD

API Copper Test Kit

API Copper Test Kit

$12.50 USD

API Copper Test Kit

$12.50 USD

NilocG Aquatics | Thrive All In One Liquid Fertilizer | 500ml Bottle |

NilocG Aquatics | Thrive All In One...

$25.99 USD

NilocG Aquatics | Thrive All In One...

$25.99 USD

Stick on thermometer temperature indicator strip microbiology aquarium (4 Style)

Stick on thermometer temperature...

$2.49 USD

Stick on thermometer temperature...

$2.49 USD