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The API KH TEST KIT measures carbonate hardness in aquarium water, promoting a healthy environment for tropical fish. The blue and white packaging displays images of colorful fish and includes benefits in English and French.
The API KH TEST KIT box, in blue and white, highlights its user-friendly design and pH-stabilizing accuracy with descriptions in English and French. Lot and expiration dates are included for convenience.
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API KH TEST KIT

$9.99
The API GH/KH Test Kit features blue and white packaging with illustrations of plants, fish, and a test vial. Its designed for freshwater aquariums to promote a natural habitat, ensuring optimal conditions for aquatic life.
Box of the API GH/KH TEST KIT for freshwater fish and plants; includes English and French instructions to measure General Hardness (GH) and Carbonate Hardness (KH). Safety hazard symbols are clearly displayed at the bottom.
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API GH/KH TEST KIT

$13.99
-50%
A Neptune Systems ASM advanced sensor module connected by a cable to a sensor embedded in a purple rock-like object, with the cable coiled beside them.
A black spherical camera embedded in a rough, purple and white rock with a cable extending from the top.
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NEPTUNE PAR MONITORING KIT PMK

Original price was: $339.99.Current price is: $169.99.
A digital INKBIRD ITC-306A temperature controller in an open cardboard box, with a user manual and probe cables placed beside it on a white surface.
A cardboard box with INKBIRD printed in blue on the side, featuring two fish outlines inside a circle. The box is closed and sits on a white background.
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INK BIRD WIFI AQUARIUM HEATER CONTROLLER 2 PROBES

$59.99
Two packets of Seachem Bottle Adapters, labeled Sr and Md, are displayed side by side. The packaging is white and blue, showing images of the adapters, with text detailing their use for dosing pumps.
Back of a white product package with black text in multiple languages, including instructions and information. A barcode and QR code are visible at the bottom, and Made in the USA is printed on the lower right.
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SEACHEM BOTTLE ADAPTERS 6 PK

$4.49
Package of VCA Bonbon Minis filter screens, featuring one yellow and one blue squishy filter inside a clear plastic blister pack with product branding and information on the cardboard backing.
The image shows packaging for VCA Supply Line Filter Screens, featuring two blue filter screens for 4mm and 6mm hoses. The label highlights universal fit, clog prevention, and includes a barcode at the bottom.
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VCA BONBON MINI SUPPLY LINE FILTER SCREEN 3 PK

$8.99
Front view of a box labeled Reef Breeders ATO 2023 Model with an image of an aquarium accessory on a dark background with abstract patterns.
A black box with a patterned background displays images of various electronic cables and connectors, including a power adapter, a long cable, and a small plug, arranged neatly on the surface.
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REEF BREEDERS ATO AUTO TOP OFF

$104.99
A black and red box of AQUATOP No-Volt Titanium Grounding Probe, showing the probe and cord on the front. The packaging advertises an 11-year extended warranty.
A product box for the Aquatop NO-VOLT Titanium Grounding Probe. The box features red and black colors, the Aquatop logo, a product description, instructions, and a small certification mark near the bottom right corner.
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AQUATOP NO-VOLT TITANIUM GROUNDING PROBE

$13.99
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A box of CoralVue HYDROS Smart Plug showing features like WiFi control, energy monitoring, compatibility with HYDROS system, 98ft range, one AC outlet, and mobile control for iPhone & Android.
A white box labeled Hydros Smart Plug shows specifications: AC 120V, 10A power rating, 2.4GHz WiFi, and 98ft range. Several certification logos are visible at the bottom.
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CORALVUE HYDROS SMART WIFI PLUG

$24.99
A green and black electronic sensor probe with a long black cable and connector, placed on a white background.
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MILWAUKEE PH PROBE 2 METER CABLE MA911B/2

$49.99
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Product box for the Duetto² ATO, labeled as the worlds smallest dual-sensor aquarium auto top off. The box shows an image of the device and mentions that an ATO DC pump is included. Brand: XTAQUA.
Product packaging for the Duetto² ATO (DATO-202P), showing diagrams of the automatic top-off system setup with labeled components, including water reservoir, pump, sensors, and aquarium sections.
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XP DUETTO 2 DUAL SENSOR ATO AUTO TOP OFF

$139.99
-20%Sold out
Two myleak products: the MY LEAK ADVANCED LEAK DETECTION KIT with a blue circular device priced at $19.99, and a 3 ft. Sensor Extender Cable featuring a black cable with a red tip priced at $9.99.
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MY LEAK ADVANCED LEAK DETECTION KIT

Original price was: $49.99.Current price is: $39.99.
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Two bottles of HANNA MARINE MAGNESIUM REAGENTS from Hanna Instruments are side by side. The larger bottle is labeled HI783A-0, and the smaller one is HI783B-0. Both labels highlight precision and quality in marine solutions.
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HANNA MARINE MAGNESIUM REAGENTS

$24.99
The HANNA MARINE MAGNESIUM CHECKER box highlights its accurate 1350 reading. This handheld colorimeter from Hanna Instruments is designed for aquariums and marine biology enthusiasts, featuring an open cap.
Box of a HANNA MARINE MAGNESIUM CHECKER. The packaging includes product specifications, contents, and accessories list.
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HANNA MARINE MAGNESIUM CHECKER

$67.99
A 60 mL bottle of Brightwell Refractometer Calibration Standard with a black cap, labeled with specific gravity, refractive index, and salinity information—ideal for precise calibration.
The BRIGHTWELL REFRACTOMETER CALIBRATION STANDARD 60 ML is presented in a sleek, black plastic bottle with a pointed nozzle cap, featuring a barcode and instructions on usage. The plain white background accentuates its elegant design.
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BRIGHTWELL REFRACTOMETER CALIBRATION STANDARD 60 ML

$6.99
The HANNA GRADUATED PIPETTE 100 MICROLITER is attractively showcased in clear plastic with two tips, featuring printed instructions on a white background for easy use and optimal centering.
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HANNA GRADUATED PIPETTE 100 MICROLITER

$29.99
Packaging for HANNA CUVETTES FOR CHECKER 2 PK features a clownfish image, text HI731315 Cuvettes for use with Checker®HC, and indicates 10 mL level mark with optically clear glass. The box contains 2 glass cuvettes with black caps.
The HANNA CUVETTES FOR CHECKER 2 PK includes two cuvettes and two caps for Marine Checker, featuring recycling and fragility symbols. Designed exclusively for laboratory and industrial use.
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HANNA CUVETTES FOR CHECKER 2 PK

$14.99
The DUAL INLINE TDS MONITOR comes with a compact digital display, colored wires, two labeled sensors (IN and OUT), and includes white plumbing connectors in a plastic bag.
The DUAL INLINE TDS MONITOR is encased in a sealed plastic package that highlights its features and specifications, with the HM Digital logo prominently at the bottom to ensure quality.
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DUAL INLINE TDS MONITOR

$44.99
Two sachets of HANNA SALINITY CALIBRATION SOLUTION 20 ML are displayed, showing blue text on white packaging. Each 20 mL sachet advises avoiding freezing and storing at room temperature for lab and industrial use.
A silver foil packet labeled HANNA SALINITY CALIBRATION SOLUTION 20 ML contains detailed information such as the lot number, expiration date, and manufacturing info. The blue company logo is prominent on the packet, designed for precise instrument calibration at 35.00 ppt.
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HANNA SALINITY CALIBRATION SOLUTION 20 ML

$2.49
A HANNA PH CALIBRATION SOLUTION PACKET, designed for accurate pH 7.01 calibration, features sleek silver packaging with the brand logo and product name, containing a handy 20 mL solution.
A white HANNA PH CALIBRATION SOLUTION PACKET shows a green and white grid with temperature (°C and °F) and pH values for a pH 7.01 buffer, including contact info for instructions.
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HANNA PH CALIBRATION SOLUTION PACKET

Price range: $1.49 through $2.99
-50%
A sleek black NEPTUNE TEMPERATURE PROBE PRBTMPJR with a long cable and cylindrical design sits on a white background, perfect for precise temperature measurement.
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NEPTUNE TEMPERATURE PROBE PRBTMPJR

Original price was: $32.99.Current price is: $16.49.
-50%
The compact black Solid-Surface Leak Detection Probe, part of Neptune Systems LEAK DETECTION KIT LDK, includes a cable with an Ethernet-like connector coiled neatly beside it and is shown resting on a white background.
The gray Neptune Systems Fluid Monitoring FMM, a rectangular device with multiple ports and indicator labels, pairs with the NEPTUNE LEAK DETECTION KIT LDK to enhance security.
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NEPTUNE LEAK DETECTION KIT LDK

Original price was: $154.99.Current price is: $77.49.
-70%
The NEPTUNE DOS DUAL RESERVOIR DDR has a two-chamber grey and orange container with clear sides. Each chamber features an orange lid with a white knob, internal tube, and rectangular top and base for precise dosing organization.
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NEPTUNE DOS DUAL RESERVOIR DDR

Original price was: $204.99.Current price is: $61.49.
-50%
The 3ft Neptune Systems Aquabus Cable (ABUS3) is coiled in black with standard USB-A connectors on both ends, displayed elegantly against a plain white background.
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NEPTUNE AQUABUS CABLE 3 FT MALE MALE ABUS3

Original price was: $13.99.Current price is: $6.99.
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