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No more mixing solutions, or waiting - simply dip these waterproof testers in the waterEasy-to-read test results in secondsQuickly measure pH and temperature; or test conductivity, total dissolved solids, and temperatureThe pHep 4 measures pH and temperature. Thanks to a stability indicator and hold feature, you'll know when to take the reading and you can freeze the display for easy and accurate recording. A stainless steel temperature probe enables fast, precise temperature measurement and auto-compensation. Includes four 1.5V batteries, pH electrode, and electrode replacement tool. ?0.1 accuracy.The DiST 5 offers a 3-in-1 solution that instantly tests conductivity, total dissolved solids (TDS), and temperature. The unit includes adjustable TDS ratio and temperature compensation. These testers also feature a stability indicator and hold feature - you'll know when to take the reading and you can freeze the display for an easy, accurate recording. A stainless steel temperature probe enables faster, more precise temperature measurement. Includes EC/TDS Probe, four 1.5V batteries, and electrode replacement tool. ?0.01 accuracy.pHep 5 and DiST 6 provide the same features and convenience, but with more precise readings (?0.01 and ?0.02).The pH/ORP Combo measures pH, redox potential, and temperature. The pH/EC/TDS Combo measures pH, conductivity, total dissolved solids, and temperature. Both have ?0.05 accuracy in their readings.All feature automatic temperature compensation. Each also tests temperature (C or F) and includes a protective cap, replaceable electrode, electrode replacement tool, battery level indicator, automatic calibration, data hold feature, four 1.5V batteries, and a battery error prevention system. Each measures 1-3/4" x 6-3/4" x 3/4" thick.Please note: While testers are automatically calibrated by the manufacturer, unavoidable jarring during shipping may affect calibration. Therefore, you should re-calibrate your tester using a Calibration Solution (s

No more mixing solutions, or waiting - simply dip these waterproof testers in the waterEasy-to-read test results in secondsQuickly measure pH and temperature; or test conductivity, total dissolved solids, and temperatureThe pHep 4 measures pH and temperature. Thanks to a stability indicator and hold feature, you'll know when to take the reading and you can freeze the display for easy and accurate recording. A stainless steel temperature probe enables fast, precise temperature measurement and auto-compensation. Includes four 1.5V batteries, pH electrode, and electrode replacement tool. ?0.1 accuracy.The DiST 5 offers a 3-in-1 solution that instantly tests conductivity, total dissolved solids (TDS), and temperature. The unit includes adjustable TDS ratio and temperature compensation. These testers also feature a stability indicator and hold feature - you'll know when to take the reading and you can freeze the display for an easy, accurate recording. A stainless steel temperature probe enables faster, more precise temperature measurement. Includes EC/TDS Probe, four 1.5V batteries, and electrode replacement tool. ?0.01 accuracy.pHep 5 and DiST 6 provide the same features and convenience, but with more precise readings (?0.01 and ?0.02).The pH/ORP Combo measures pH, redox potential, and temperature. The pH/EC/TDS Combo measures pH, conductivity, total dissolved solids, and temperature. Both have ?0.05 accuracy in their readings.All feature automatic temperature compensation. Each also tests temperature (C or F) and includes a protective cap, replaceable electrode, electrode replacement tool, battery level indicator, automatic calibration, data hold feature, four 1.5V batteries, and a battery error prevention system. Each measures 1-3/4" x 6-3/4" x 3/4" thick.Please note: While testers are automatically calibrated by the manufacturer, unavoidable jarring during shipping may affect calibration. Therefore, you should re-calibrate your tester using a Calibration Solution (s

No more mixing solutions, or waiting - simply dip these waterproof testers in the waterEasy-to-read test results in secondsQuickly measure pH and temperature; or test conductivity, total dissolved solids, and temperatureThe pHep 4 measures pH and temperature. Thanks to a stability indicator and hold feature, you'll know when to take the reading and you can freeze the display for easy and accurate recording. A stainless steel temperature probe enables fast, precise temperature measurement and auto-compensation. Includes four 1.5V batteries, pH electrode, and electrode replacement tool. ?0.1 accuracy.The DiST 5 offers a 3-in-1 solution that instantly tests conductivity, total dissolved solids (TDS), and temperature. The unit includes adjustable TDS ratio and temperature compensation. These testers also feature a stability indicator and hold feature - you'll know when to take the reading and you can freeze the display for an easy, accurate recording. A stainless steel temperature probe enables faster, more precise temperature measurement. Includes EC/TDS Probe, four 1.5V batteries, and electrode replacement tool. ?0.01 accuracy.pHep 5 and DiST 6 provide the same features and convenience, but with more precise readings (?0.01 and ?0.02).The pH/ORP Combo measures pH, redox potential, and temperature. The pH/EC/TDS Combo measures pH, conductivity, total dissolved solids, and temperature. Both have ?0.05 accuracy in their readings.All feature automatic temperature compensation. Each also tests temperature (C or F) and includes a protective cap, replaceable electrode, electrode replacement tool, battery level indicator, automatic calibration, data hold feature, four 1.5V batteries, and a battery error prevention system. Each measures 1-3/4" x 6-3/4" x 3/4" thick.Please note: While testers are automatically calibrated by the manufacturer, unavoidable jarring during shipping may affect calibration. Therefore, you should re-calibrate your tester using a Calibration Solution (s

No more mixing solutions, or waiting - simply dip these waterproof testers in the waterEasy-to-read test results in secondsQuickly measure pH and temperature; or test conductivity, total dissolved solids, and temperatureThe pHep 4 measures pH and temperature. Thanks to a stability indicator and hold feature, you'll know when to take the reading and you can freeze the display for easy and accurate recording. A stainless steel temperature probe enables fast, precise temperature measurement and auto-compensation. Includes four 1.5V batteries, pH electrode, and electrode replacement tool. ?0.1 accuracy.The DiST 5 offers a 3-in-1 solution that instantly tests conductivity, total dissolved solids (TDS), and temperature. The unit includes adjustable TDS ratio and temperature compensation. These testers also feature a stability indicator and hold feature - you'll know when to take the reading and you can freeze the display for an easy, accurate recording. A stainless steel temperature probe enables faster, more precise temperature measurement. Includes EC/TDS Probe, four 1.5V batteries, and electrode replacement tool. ?0.01 accuracy.pHep 5 and DiST 6 provide the same features and convenience, but with more precise readings (?0.01 and ?0.02).The pH/ORP Combo measures pH, redox potential, and temperature. The pH/EC/TDS Combo measures pH, conductivity, total dissolved solids, and temperature. Both have ?0.05 accuracy in their readings.All feature automatic temperature compensation. Each also tests temperature (C or F) and includes a protective cap, replaceable electrode, electrode replacement tool, battery level indicator, automatic calibration, data hold feature, four 1.5V batteries, and a battery error prevention system. Each measures 1-3/4" x 6-3/4" x 3/4" thick.Please note: While testers are automatically calibrated by the manufacturer, unavoidable jarring during shipping may affect calibration. Therefore, you should re-calibrate your tester using a Calibration Solution (s

Easy-to-install metal halide lighting hardware for your reef aquariumUse to suspend IceCaps PAR Pendant Fixture and HQI PendantStainless steel hardware and cable assembly used for suspending IceCaps PAR Pendant Fixture and HQI Pendant. Exclusive quick lock/release design makes installation easier than ever.Please click on "More Information" for installation tips.

The AquaFuge is a nursery or isolation area for aquatic life, as well as an environment providing ideal growth conditions for aquarium food like copepods and amphipods. It can also serve as a controlled growing area for the macroalgae that help reduce nuisance microalgae in your primary aquarium. This hang-on model comes with its own powerhead, and features a unique baffle system that prevents any disturbance to the substrate and aquatic organisms while promoting fresh water flow that eliminates stagnant areas. Three sizes.SizeDimensionsSmall13-1/4"L x 4-1/2"W x 12"HMedium19-1/4"L x 4-1/2"W x 12"HLarge25-1/2"L x 4-1/2"W x 12"HDownloadable AquaFuge External Hang-On Refugium Instructions PDF. (Requires Adobe Acrobat Reader 4.0 or later - get it here for free)

The AquaFuge is a nursery or isolation area for aquatic life, as well as an environment providing ideal growth conditions for aquarium food like copepods and amphipods. It can also serve as a controlled growing area for the macroalgae that help reduce nuisance microalgae in your primary aquarium. This hang-on model comes with its own powerhead, and features a unique baffle system that prevents any disturbance to the substrate and aquatic organisms while promoting fresh water flow that eliminates stagnant areas. Three sizes.SizeDimensionsSmall13-1/4"L x 4-1/2"W x 12"HMedium19-1/4"L x 4-1/2"W x 12"HLarge25-1/2"L x 4-1/2"W x 12"HDownloadable AquaFuge External Hang-On Refugium Instructions PDF. (Requires Adobe Acrobat Reader 4.0 or later - get it here for free)

The AquaFuge is a nursery or isolation area for aquatic life, as well as an environment providing ideal growth conditions for aquarium food like copepods and amphipods. It can also serve as a controlled growing area for the macroalgae that help reduce nuisance microalgae in your primary aquarium. This hang-on model comes with its own powerhead, and features a unique baffle system that prevents any disturbance to the substrate and aquatic organisms while promoting fresh water flow that eliminates stagnant areas. Three sizes.SizeDimensionsSmall13-1/4"L x 4-1/2"W x 12"HMedium19-1/4"L x 4-1/2"W x 12"HLarge25-1/2"L x 4-1/2"W x 12"HDownloadable AquaFuge External Hang-On Refugium Instructions PDF. (Requires Adobe Acrobat Reader 4.0 or later - get it here for free)

Hang On Filter with built-in UV Sterilizer

Hurry Sale ends February 1st, 2010.Screw-socket high intensity discharge metal halide bulbsIdeal for metal halide pendant fixtures175-watt to 400-watt metal halide bulbs ideal for reef aquariums Screw-socket metal halide bulbs in a wide range of color temperatures and wattage to reproduce natural light conditions found in the ocean. Significantly brighter than other types of bulbs, metal halide bulbs can be used alone or with Actinic bulbs for a bluer effect. Use with any appropriately sized mogul socket metal halide lighting unit.Available in: 175-watt 5500K American Made 175-watt 6500K Superbrite Day Bulb American Made 175-watt True 10000K 175-watt 14000K German-Made 250-watt 10000K German-Made 250-watt 20000K German-Made 400-watt 10000K 400-watt 20000KHandle bulb by socket end only, DO NOT touch bulb. Please click on "More Information" for further details and safety precautions.