{"product_id":"tropic-marin-high-precision-hydrometer","title":"Tropic Marin High-Precision Hydrometer","description":"\u003ch2\u003eTropic Marin High-Precision Hydrometer\u003c\/h2\u003e\n\u003cp\u003eThe Tropic Marin High-Precision Hydrometer is a precise floating glass hydrometer for measuring specific gravity in saltwater and reef aquariums. Handmade from mouth-blown glass and calibrated for use at 25°C \/ 77°F, it provides a reliable non-digital salinity reference for reef keepers who want to confirm aquarium salinity, check newly mixed saltwater, or compare readings from electronic salinity meters and refractometers.\u003c\/p\u003e\n\u003ch3\u003eTropic Marin High-Precision Hydrometer for Reef Salinity\u003c\/h3\u003e\n\u003cp\u003eStable salinity is critical for marine fish, corals, and invertebrates. This high-precision hydrometer gives reef keepers a simple, calibration-free way to measure specific gravity with fine resolution. It is especially useful as a dependable reference tool when checking water-change batches or verifying other salinity measuring devices.\u003c\/p\u003e\n\u003ch3\u003eMouth-Blown Glass Hydrometer Measurement Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for determining specific gravity in saltwater aquariums.\u003c\/li\u003e\n\u003cli\u003eHandmade mouth-blown glass construction for precise floating measurement.\u003c\/li\u003e\n\u003cli\u003eDoes not require recalibration like many electronic salinity tools.\u003c\/li\u003e\n\u003cli\u003eFine 0.0001 resolution helps reef keepers read small salinity differences.\u003c\/li\u003e\n\u003cli\u003eBlue scale highlights the recommended marine aquarium range.\u003c\/li\u003e\n\u003cli\u003eUseful for checking aquarium water, freshly mixed saltwater, and other salinity measuring equipment.\u003c\/li\u003e\n\u003cli\u003eBest used in a suitable tall measuring cylinder so the hydrometer can float freely without touching the sides or bottom.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHigh-Precision Hydrometer Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProduct type: Floating glass hydrometer\u003c\/li\u003e\n\u003cli\u003eApplication: Saltwater aquarium specific gravity measurement\u003c\/li\u003e\n\u003cli\u003eMaximum deviation: 0.001 at 25°C \/ 77°F\u003c\/li\u003e\n\u003cli\u003eScale range: 1.021 to 1.031 specific gravity\u003c\/li\u003e\n\u003cli\u003eResolution: 0.0001\u003c\/li\u003e\n\u003cli\u003eRecommended marine aquarium range: 1.025 to 1.027 at 25°C \/ 77°F\u003c\/li\u003e\n\u003cli\u003eMaterial: Mouth-blown glass\u003c\/li\u003e\n\u003cli\u003eCountry of manufacture: Made in EU\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTropic Marin Hydrometer Use Directions\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eUse a clean measuring cylinder or tall test vessel that allows the hydrometer to float freely.\u003c\/li\u003e\n\u003cli\u003eFill the vessel with aquarium water or freshly mixed saltwater at approximately 25°C \/ 77°F for the most accurate reading.\u003c\/li\u003e\n\u003cli\u003ePlace the hydrometer gently into the sample and make sure it is not touching the side or bottom of the vessel.\u003c\/li\u003e\n\u003cli\u003eAllow the hydrometer to settle vertically and wait for bubbles to clear from the glass.\u003c\/li\u003e\n\u003cli\u003eRead the value at the water surface on the blue part of the scale rather than at the meniscus.\u003c\/li\u003e\n\u003cli\u003eRinse the hydrometer with fresh water after use and allow it to dry before storage.\u003c\/li\u003e\n\u003cli\u003eHandle carefully because the hydrometer is made from precision glass.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Kane Aquarium","offers":[{"title":"Default Title","offer_id":46404194959439,"sku":"AQPR001","price":51.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/2640\/9807\/files\/TropicMarinHigh-PrecisionHydrometer.webp?v=1786576235","url":"https:\/\/kaneaquarium.com\/products\/tropic-marin-high-precision-hydrometer","provider":"Kane Aquarium","version":"1.0","type":"link"}