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5,380 matching items · Most used first
OtherHanna Instruments
Hanna Instruments HI772-26 Alkalinity Checker reagent refill (dKH); enough for 25 tests. Works with both dKH and ppm alkalinity Hanna Checkers; refill includes liquid reagent only.
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OtherHanna Instruments
Hanna HI774-25 phosphate ultra-low-range reagent refills for the easy-to-use handheld Phosphate ULR ppm Colorimeter HI774 Hanna Checker HC Marine Water, as well as the Marine Master HI97105 multiparameter photometer; 25 packets of reagent.
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OtherHanna Instruments
Alkalinity reagent refills for the easy to use, handheld Alkalinity Colorimeter HI775 Hanna Checker HC - Fresh Water. Enough reagent for 25 tests. Item number HI775-25.
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OtherHanna Instruments
Hanna Instruments HI780-25 Marine pH Checker HC reagent refill; enough for 100 tests with the HI780 marine pH Checker.
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OtherHanna Instruments
Hanna HI782-25 reagent refill for the Nitrate High Range Colorimeter HI782 Marine Water, as well as the Marine Master HI97105 multiparameter photometer; enough reagent for 25 tests.
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OtherHanna Instruments
The Hanna HI782-25 reagent set provides enough reagent for 25 high-range nitrate tests with the HI782 Nitrate Checker HC or the Marine Master HI97105 multiparameter photometer. Each pre-measured packet supports fast, accurate nitrate measurements up to 75 ppm in marine water.
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OtherHanna Instruments
Hanna Instruments HI783-25 Marine Magnesium reagent refill (25-pack) for the HI783 Magnesium Checker HC; pre-made with high-purity chemicals. Each unit marked with lot number and expiration date.
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OtherHanna Instruments
Hanna Instruments HI784-25 Marine Ammonia reagent refill for the HI784 Ammonia Checker HC, with enough reagent for 25 tests. The premade reagents use high-purity chemicals and are marked with lot numbers and expiration dates.
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OtherHanna Instruments
The Hanna HI98108 Waterproof pHep+ is a pocket pH tester for saltwater and freshwater aquariums with 0.01 pH resolution and automatic temperature compensation. It features an extractable cloth electrode junction for extended life, two-button operation with automatic calibration, and simultaneous pH and temperature display on a large multi-level LCD.
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OtherHanna Instruments
The Hanna HI98319 Marine Salinity Tester measures electrical conductivity (EC) to determine the salinity of natural and artificial seawater, displaying salinity and temperature within seconds on an easy-to-read LCD with automatic temperature compensation. Cycles between ppt, PSU, and specific gravity (0.0-70.0 ppt, 1.000-1.041 S.G.); pocket-sized with graphite sensors, calibration solutions, storage case, and CR2032 battery included.
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Climate ControlHanna Instruments
A Hanna Instruments Checktemp 1 (HI98509) digital thermometer with an NTC thermistor sensor and a 3.3-foot silicone cable ending in an AISI 316 stainless steel probe for rapid temperature readings. It measures -58 to 302 F with 0.1 F resolution and +/- 0.5 F accuracy, has a large LCD display with °F/°C selection, IP65 water resistance, CAL Check self-diagnostics, user-selectable auto-off, and runs about 3 years on the included 3 AAA batteries.
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FilterFilter Media Cup
Filter Media Cup 7-inch high-flow flexible cup in Sea Foam White; BPA-free polypropylene one-piece design replaces filter socks. Holds filter pads, floss, carbon, GFO, or biological media; fits most round 7-inch filter sock holders.
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FilterNot specified
This 4-inch High Flow Flexible Filter Media Cup (blue) replaces filter socks; a solid one-piece cup of BPA-free polypropylene that drops into most 4-inch filter sock holders and holds filter pads, floss, carbon, GFO, or biological media. To clean, simply replace the media as needed; 6 inches tall by 4 inches diameter.
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FilterFilter Media Cup
Filter Media Cup 4-inch high-flow flexible cup in Calypso Blue; BPA-free polypropylene one-piece design with slots for higher flow. Holds filter pads, floss, carbon, GFO, or biological media; fits standard 4-inch filter sock holders.
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FilterFilter Media Cup
Filter Media Cup 4-inch high-flow flexible cup in Coral Red; BPA-free polypropylene one-piece design with slots for higher flow. Holds filter pads, floss, carbon, GFO, or biological media; fits standard 4-inch filter sock holders.
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FilterNot specified
This 4-inch High Flow Flexible Filter Media Cup (coral red) replaces filter socks; a solid one-piece cup of BPA-free polypropylene that drops into most 4-inch filter sock holders and holds filter pads, floss, carbon, GFO, or biological media. To clean, simply replace the media as needed; 6 inches tall by 4 inches diameter.
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FilterFilter Media Cup
Filter Media Cup 4-inch high-flow flexible cup in Sea Foam White; BPA-free polypropylene one-piece design with slots for higher flow. Holds filter pads, floss, carbon, GFO, or biological media; fits standard 4-inch filter sock holders.
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OtherTropic Marin
Tropic Marin High Precision Hydrometer; handmade float for measuring specific gravity (scale 1.021-1.031) with 0.0001 resolution and max deviation 0.001 at 77F. Never needs recalibration, making it an ideal reference device.
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OtherTropic Marin
Tropic Marin's High Precision Hydrometer provides an exact and reliable measurement of specific gravity and never needs to be re-calibrated, making it a perfect reference device for calibrating other salinity equipment. Handmade to float vertically; scale 1.021-1.031 with 0.0001 resolution; maximum deviation 0.001 at 77 F (25 C). Check for blue printing and the 'Specific Gravity' indication.
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OtherHikari
Hikari Bio-Pure Frozen Mega-Marine Algae (3.5 oz) is a balanced frozen diet for algae-eating marine fish like tangs, rabbitfish, and blennies, blending ocean plankton, krill, shrimp, squid, and algae; it is 3-step sterilized, bio-encapsulated with multivitamins, and supports coloration and growth.
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OtherHikari
Hikari Bio-Pure Frozen Mega-Marine Angel (3.5 oz) is a protein and jellyfish-enriched frozen stick food for marine angels of all sizes, 3-step sterilized, bio-encapsulated with multi-vitamins, retaining natural color and nutrition.
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Substrates & AquascapingAqua Forest Aquarium
Hill Stone is an inert stone with dark gray color and light white speckles, resembling rock formations on hilltops of mountains, with sharply chiseled crevices. Suitable for Iwagumi layouts or combined with wood; minimum order 15 lbs; available in 15, 20, 30, and 50 lb quantities.
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OtherHanna Instruments
Hanna Instruments HIREEF2 Professional Reef Test Kit; includes the HI772 dKH Alkalinity Checker, HI758 Calcium Checker, HI774 ULR Phosphate Checker, and HI98319 Salinity/Temperature pen. Digital colorimeter-style results on large LCD displays; reagents for ~25 tests each included.
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HM Digital
The HM Digital DM-1 Dual Inline TDS Meter monitors total dissolved solids at two points in a RODI water system (typically post-RO membrane and post-DI resin) so you can see when the membrane or DI resin needs replacing. It features a digital display, two 1/4-inch quick-connect tees with double o-rings, and comes factory calibrated (LR44 battery).
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LightsAquaIllumination
Hanging kit for the AquaIllumination HMS multi-light track. Suspends the track from a ceiling or wall bracket with quick-lock height adjustment; mounts to the sides of the track and includes all necessary hardware. Track, lights, and brackets sold separately.
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LightsAquaIllumination
The AquaIllumination HMS Hydra 32 Bracket holds one Hydra 32 LED module (also compatible with the Hydra 26HD) and slides within the HMS Multi Light Track system for adjustable side-to-side positioning and reduced shadowing. It includes mounting hardware; the HMS track is required for use.
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LightsAquaIllumination
An AquaIllumination mounting bracket that secures a Hydra 64 or Hydra 52 HD LED fixture to the AI Hydra Mounting System (HMS) rail. Sold without the rail, it allows the light to slide and swivel for precise positioning over the tank.
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LightsAquaIllumination
AquaIllumination HMS Multi Light Mount Kit; includes vertical rails and mounting feet that sit on the aquarium rim, built from high-quality rust-proof aluminum. Track system lets you slide and position multiple Hydra LED modules for optimal coverage and reduced shadowing.
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LightsAquaIllumination
The Aqua Illumination HMS Multi Light Track is an aluminum rail component of the Hydra Mounting System that lets multiple Hydra LED modules slide side to side and rotate for ideal positioning, coverage, and reduced shadowing. Rust-proof and available in five lengths (25.5" to 73.5"), it is sized by adding 1.5" to the aquarium's length and pairs with the HMS Multi Light Mount Kit or Hanging Kit plus Hydra brackets.
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LightsAquaIllumination
The AquaIllumination HMS Single Light Mount Kit holds a single Hydra LED unit with brackets for the 32 and 64 series, sliding rails, twisting light brackets, and adjustable height. It clamps to rimless tanks up to 1.125 inches thick and includes wire guide clips.
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