JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser.

Home
Controllers & Testing
Test Kits

Test Kits

$Refractometer for Reading Salinity with Calibration Fluid$

474 Reviews

Bulk Reef Supply
Refractometer for Reading Salinity with Calibration Fluid
$29.59 $36.99

View Details
68 Reviews

Hanna Instruments
HI98319 Marine Salinity Tester
$71.99 $89.99
$MA887 Digital Seawater Refractometer - Milwaukee$

139 Reviews

Milwaukee Instruments
MA887 Digital Seawater Refractometer - Milwaukee
$129.20 $152.00
2 Reviews

Bulk Reef Supply
BRS Master Test Kit Bundle
$159.99 $199.99

View Details
2 Reviews

Bulk Reef Supply
Thomas' Favorite Test Kits Bundle
$223.99 $279.99

View Details
41 Reviews

Red Sea
RedSea Marine Care Test Kit
$74.99 $74.99
199 Reviews

Red Sea
RedSea Reef Foundation Pro Multi Test Kit (Ca, Alk, Mg)
$74.99 $74.99
43 Reviews

Red Sea
RedSea Algae Control Multi Test Kit (NO3/PO4)
$74.99 $74.99
10 Reviews

Hanna Instruments
Marine Master Bluetooth Multiparameter Photometer HI97115
$379.99 $474.99
3 Reviews

Hanna Instruments
HIREEF2 Professional Reef Test Kit
$239.99 $299.99
Hanna Instruments
Marine Coral Care Test Kit
$155.99 $194.99
Hanna Instruments
Marine Algae & Nutrient Management Test Kit
$135.99 $169.99
115 Reviews

Hanna Instruments
Alkalinity DKH Colorimeter HI772 Hanna Checker - Marine Water
$54.39 $67.99
36 Reviews

Hanna Instruments
HI772-26 Alkalinity Checker Reagents - Hanna
$14.39 $17.99
37 Reviews

Hanna Instruments
Nitrate High Range Colorimeter HI782 - Marine Water
$54.39 $67.99
8 Reviews

Hanna Instruments
HI782-25 Nitrate HR Checker Reagents - Hanna
$19.99 $24.99
32 Reviews

Hanna Instruments
Phosphate Ultra Low Range PPM Colorimeter HI774 Hanna Checker - Marine Water
$54.39 $67.99
7 Reviews

Hanna Instruments
HI774-25 Phosphate ULR Reagents - Marine Water
$14.39 $17.99
18 Reviews

Hanna Instruments
Marine Magnesium Colorimeter HI783
$54.39 $67.99
Hanna Instruments
HI783-25 Marine Magnesium Reagents (25 Pack)
$19.99 $24.99
164 Reviews

Hanna Instruments
Calcium Colorimeter HI758 Hanna Checker - Marine Water
$54.39 $67.99
21 Reviews

Hanna Instruments
HI758-26 Calcium Checker Reagents - Marine Water
$23.99 $29.99
1 Review

Neptune Systems
2-Month Trident Reagent Kit
$49.99 $49.99
18 Reviews

Neptune Systems
6-Month Trident Reagent Kit
$109.99 $109.99
Neptune Systems
Trident NP Waste Container
$3.49 $3.49
1 Review

API
Reef Master Test Kit
$35.98 $35.98
4 Reviews

API
Saltwater Liquid Master Test Kit
$35.98 $35.98
3 Reviews

ATI
ATI ICP-OES Pro Water Analysis
$44.95 $44.95
12 Reviews

Triton
1-Pack ICP-OES Testing Kit
$41.65 $49.00
Triton
3-Pack ICP-OES Testing Kit
$119.85 $141.00

View Details
Triton
6-Pack ICP-OES Testing Kit
$229.50 $270.00

View Details
35 Reviews

Tropic Marin
High Precision Hydrometer
$31.15 $36.65
6 Reviews

Hanna Instruments
Marine Monitor (pH/Salinity/Temperature)
$239.99 $299.99
86 Reviews

Salifert
Salifert kH/Alkalinity Aquarium Test Kit
$15.29 $17.99
73 Reviews

Salifert
Salifert Magnesium Aquarium Test Kit
$18.69 $21.99
22 Reviews

Salifert
Salifert Phosphate Aquarium Test Kit
$18.69 $21.99
2 Reviews

Salifert
pH Aquarium Test Kit
$11.04 $12.99
4 Reviews

Salifert
Salifert Copper Aquarium Test Kit
$16.99 $19.99
8 Reviews

Salifert
Salifert Silicate Aquarium Test Kit
$16.14 $18.99
Salifert
Salifert Potassium Aquarium Test Kit
$17.84 $20.99
31 Reviews

AutoAqua
Smart Stir - Magnetic Stirrer for Test Kits
$28.04 $32.99
2 Reviews

Nyos
Alkalinity Reefer Test Kit
$14.99 $14.99
5 Reviews

Nyos
Calcium REEFER Test Kit
$19.99 $19.99
2 Reviews

Nyos
Magnesium REEFER Test Kit
$19.99 $19.99
40 Reviews

Nyos
Nitrate REEFER Test Kit
$24.99 $24.99
5 Reviews

Nyos
Phosphate REEFER Test Kit
$24.99 $24.99
4 Reviews

Aquaforest
Test Pro Pack (Ca, KH, Mg)
$49.99 $49.99
7 Reviews

Aquaforest
AF Alkalinity Test Kit
$14.29 $14.29
6 Reviews

Aquaforest
AF Calcium Test Kit
$19.79 $19.79
15 Reviews

Aquaforest
AF Magnesium Test Kit
$19.79 $19.79
Aquaforest
AF Nitrate Test Kit
$24.19 $24.19
NT Labs
Marine Lab Multi-Test Kit
$39.93 $46.98
NT Labs
Marine Lab Reef Multi-Test Kit
$50.73 $59.68
20 Reviews

Salifert
Salifert Ammonia Aquarium Test Kit
$14.44 $16.99
17 Reviews

Red Sea
RedSea Trace Colors Pro Multi Test Kit (I2,K,Fe)
$84.99 $84.99
NT Labs
Marine Lab KH (Alkalinity) Test Kit
$10.79 $12.69
NT Labs
Marine Lab Calcium Test Kit
$14.03 $16.50
NT Labs
Marine Lab Magnesium Test Kit
$12.95 $15.23
NT Labs
Marine Lab Ammonia Test Kit
$11.87 $13.96
NT Labs
Marine Lab Nitrite Test Kit
$10.79 $12.69
NT Labs
Marine Lab Nitrate Test Kit
$11.87 $13.96
NT Labs
Marine Lab Phosphate Test Kit
$12.95 $15.23
1 Review

NT Labs
Marine Lab pH Test Kit
$10.79 $12.69
172 Reviews

Hanna Instruments
Alkalinity PPM Colorimeter HI755 Hanna Checker - Marine Water
$54.39 $67.99
260 Reviews

Hanna Instruments
Phosphate Low Range Colorimeter HI713 Hanna Checker - Fresh & Marine Water
$54.39 $67.99
6 Reviews

Milwaukee Instruments
Milwaukee MC120 pH Monitor
$99.15 $116.65
20 Reviews

American Marine Inc.
PINPOINT pH Monitor
$80.74 $94.99
Neptune Systems
Trident Drip Tray
$9.99 $9.99
ATI
ATI ICP-MS Premium Water Analysis
$64.95 $64.95
1 Review

ATI
ATI ICP-OES Basic Water Analysis
$29.95 $29.95
2 Reviews

Focustronic
Alkatronic Pro Alkalinity Controller
$899.99 $899.99
9 Reviews

Neptune Systems
Trident NP Nitrate & Phosphate Tester (Without Reagents)
$649.99 $649.99
1 Review

Reef Factory
Smart tester Phosphate Reagent Cartridges
$22.52 $26.49
4 Reviews

Reef Factory
Smart tester Automated Testing Device
$521.04 $612.99
API
5-In-1 Aquarium Test Strips (100 CT)
$24.98 $24.98
API
Freshwater Master Test Kit
$35.98 $35.98
Aquaforest
Starter Pack
$149.99 $149.99
1 Review

API
Saltwater Calcium Test Kit
$13.98 $13.98
API
Freshwater/Saltwater Ammonia Test Kit, Test kit of 130 tests
$15.48 $15.48
2 Reviews

API
Freshwater/Saltwater Nitrate Test Kit, Test kit of 90 tests
$13.98 $13.98
12 Reviews

Hanna Instruments
Marine pH Colorimeter HI780 Hanna Checker
$54.39 $67.99
Tropic Marin
Reagent Refill for Pro Nitrite and Nitrate Test Kit
$27.82 $32.73
1 Review

Tropic Marin
Pro Nitrite and Nitrate Test Kit
$27.82 $32.73
4 Reviews

Tropic Marin
Compact Lab - Essentials Test Kit
$54.09 $63.64
10 Reviews

Red Sea
RedSea Nitrate / Nitrite Test Kit
$26.99 $26.99
10 Reviews

Red Sea
RedSea Ammonia Test Kit
$23.99 $23.99
4 Reviews

Red Sea
RedSea pH / Alkalinity Test Kit
$23.99 $23.99
1 Review

Red Sea
RedSea Iodine Pro Reagent Refill Kit
$25.99 $25.99
8 Reviews

Red Sea
RedSea Nitrate Pro Reagent Refill Kit
$30.99 $30.99
15 Reviews

Red Sea
RedSea Magnesium Pro Reagent Refill Kit
$24.99 $24.99
19 Reviews

Red Sea
RedSea Alkalinity Pro Reagent Refill Kit
$24.99 $24.99
20 Reviews

Red Sea
RedSea Calcium Pro Reagent Refill Kit
$24.99 $24.99
5 Reviews

Red Sea
RedSea Iodine Pro (I2) test kit
$54.99 $54.99
20 Reviews

Red Sea
RedSea Phosphate Pro (PO4) test kit
$54.99 $54.99
37 Reviews

Red Sea
RedSea Nitrate Pro (NO3) Test Kit
$54.99 $54.99
32 Reviews

Red Sea
RedSea Magnesium Pro Test Kit
$41.99 $41.99
17 Reviews

Red Sea
RedSea Alkalinity Pro Test Kit
$41.99 $41.99
Hanna Instruments
HALO2 Wireless pH Tester for Field
$127.99 $159.99
83 Reviews

Neptune Systems
Trident - Marine Aquarium Water Analyzer
$674.99 $674.99
13 Reviews

Neptune Systems
Trident NP Nitrate & Phosphate Tester w/ 2 Month Reagent Kit
$709.98 $709.98

View Details
Neptune Systems
2-Month Trident NP Reagent Kit
$59.99 $59.99
113 Reviews

Salifert
Salifert Calcium Aquarium Test Kit
$17.84 $20.99
39 Reviews

Salifert
Salifert Nitrate Aquarium Test Kit
$16.14 $18.99
3 Reviews

Salifert
Salifert Nitrite Aquarium Test Kit
$11.04 $12.99
4 Reviews

Focustronic
Mastertronic Essential Automated Water Tester (Alk/Cal/Mag/PO4/NO3)
$1,499.99 $1,499.99
Red Sea
RedSea Phosphate Pro Reagent Refill Kit
$30.99 $30.99

Download the App