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Top 9
August 2025
Best Aquarium Test Tubes
We made a list of the top 9 Aquarium Test Tubes based on verified reviews, popularity and other factors which we summarized for you in this list.
Best Choice
1
Aquameta Aquarium Test Tube Holder with Rack - for API Freshwater Master Test Kit - 4 Slots Test Tube Rack – White
Aquameta
9.4
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✓
Multi-Functional Design: Aquarium Water Test Kit Securely Hold Test Tubes For Water Parameter Testing And Enjoy The Dual-purpose Drying Rack Functionality.
✓
Perfect Fit: Designed with precision, the rack slots seamlessly onto the API test kit box or any flat surface for convenient use.
✓
Smart Features: These test tubes with rack is equipped with ventilation channels to ensure quick and thorough drying, a color chart holder, and cap slots placed at the front for easy access.
✓
Premium Build: Crafted from high-quality 3D-printed aquarium-safe PETG material, ensuring durability and safety for your aquatic environment.
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Package Content: Test Tube Holder Rack includes 1 piece of API Stand measuring 131mm x 50mm x 51mm; Please note that the API water test kit and test tubes are not included.
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2
API REPLACEMENT PLASTIC TEST TUBES WITH CAPS For Any Aquarium Test Kit Including API Freshwater Master Test Kit 24-Count Box
API
9.2
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✓
Contains one (1) API REPLACEMENT TEST TUBES WITH CAPS For Any Aquarium Test Kit Including API Freshwater Master Test Kit 24-Count Box
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Compatible with any aquarium water test kits including freshwater and saltwater test kit, pH test kit, ammonia test kit, nitrate test kit, reef test kit, calcium test kit and more
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The API test tubes are perfect to replace API Freshwater Master Test Kit tubes, API Saltwater Master Test Kit tubes, API Reef Master Test Kit tubes, API Pond Master Test Kit tubes and any other API Test Kit tubes
✓
Snap-tight plastic caps
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Use when original tubes have been lost or damaged
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3
Tililly Concepts Glass Test Tubes with Leak-Proof Screw Caps and 5 ml Mark, 6 pcs, for Aquarium Water Checks (85mm)
Tililly Concepts
9.1
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✓
Set of 6 flat-bottomed glass test tubes with leak-proof screw caps - no more spills!
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Customised for use as REPLACEMENT TEST TUBES for all aquarium water tests
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5ml mark for aquarium water and sufficient additional capacity to hold API test solutions.
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Made of borosilicate glass of 1mm wall thickness, 13 mm diameter
✓
Please note: rack not included in this offer.
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13% Discount
4
hand2mind Starter Science Lab - Flat Bottom Test Tubes with Lids, Six Tube Rack for Kids Experiments
hand2mind
9.0
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✓
HIGH QUALITY SCIENCE SUPPLIES FOR KIDS: Each test tube set includes 6 flat-bottomed test tubes, 6 different-colored stoppers, 1 reusable cleaning brush, 1 test tube rack and an activity guide.
✓
TEST TUBE HOLDER: Not only does our test tube set come with a storage rack, but the test tubes themselves have flat bottoms which allow them to stand on their own.
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TEST TUBES WITH LIDS: Colored stoppers click into place for no-spill experiments.
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INCLUDES TEST TUBE CLEANER: Each set also comes with a test tube cleaning rod that helps make clean up easy.
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EDUCATIONAL SCIENCE EXPERIMENTS: Not only do we include our test tubes, but we also have an activity guide that includes 4 kid-friendly science experiments.
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5
Z-Color 10pcs 10ml Lab Plastic Frozen Test Tubes Vial Seal Cap Container for Laboratory School Educational
8.9
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✓
Good sealing cap, samples will not volatilize.
✓
Smooth wall and good transparency.
✓
Low temperature, long - term freezing, product with 1-10ml scale, easy to read liquid volume
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Resistance to low temperature, can be frozen for a long time.
✓
Used in hospitals, epidemic prevention station, schools, scientific research laboratory, etc
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6% Discount
6
API Replacement Test Tubes for Aquarium Test Kits 6 Pack Bundle
API
8.8
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✓
Replacement Test Tubes compatible with the Aquarium Pharmaceuticals (API) Test Kits
✓
Includes caps
✓
6 Pack
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7
Aquarium Test Glass Tube (6-Pack | 5-ml | 4 x1/2 inch) for Fresh & Salt Water Aquarium Lab Test
BASE WAVE
8.7
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✓
Package include : 6 pcs ;
✓
Material : Glass body & plastic cap ;
✓
Size : 4''(102mm) x 1/2''(12mm) (D x L) ;
✓
Great for aquarium water quality test,test hardness, carbonate, nitrate, nitrite, pH & more, etc ;
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Also for scientific experiment,classroom,lab and so on .
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8
50Pcs Clear Plastic Test Tubes with Rack,16x100mm(10ml) Test Tube with Caps and 50 Holes Tubes Rack for Scientific Experiments,Party,Decorate The House,Candy Storage
Panxxsen
8.6
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✓
Plastic test tubes size is 16 x 100mm.Capacity is 10ml.Test tube rack size is 9.9 x 4.4 x 2.6 inches/25.2 x 11.2 x 6.5 cm.
✓
Our test tubes package includes 50 pcs Test Tubes with Caps and 1 pack 50-hole test tube rack.
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The cap can be tightly attached to the test tube with a diameter of 16mm.It has good sealing performance and can effectively prevent liquid leakage.
✓
Tubes clear is made of high quality plastic,sturdy.It is not only ideal for scientific experiments and storing beads,spices,liquids,seeds and more,but also can be used for mixing drinks to decorate Halloween,Christmas and scientific theme parties perfectly.
✓
The rack has 3 Layer and 2 slots that each layer has a direction,slide the shelves in from one side and the other side has a lip that stops it.The rack has three layers of holes with a smallest hole at the bottom to keep tubes steady,and the large holes on the top and the second floor.
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9
Aquarium Water Quality Kit (10ml Tube x12 + 3ml Dropper x2) - Test Strips Not Included
BASE WAVE
8.0
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✓
Package include : Test tube(10ml) x12 + dropper(3ml) x2 ;
✓
Material : Plastic ;
✓
Test tube size : 3-3/4''(95mm) x 19/32''(15mm) (D x L) ;
✓
Great for aquarium water quality test,test hardness, carbonate, nitrate, nitrite, pH & more, etc ;
✓
Also for scientific experiment,classroom,lab and so on .
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“
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