{"product_id":"sera-saltwater-hydrometer","title":"Sera Saltwater Hydrometer","description":"\u003cp\u003e\u003cstrong\u003eMarine Hydrometer\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMarine fish and invertebrates need a density of 1.022 to 1.024 g\/ml assuming a common temperature of 77 degrees. Sera Marine Hydrometer is German craftsmanship at its finest. You will know exactly where your marine aquarium stands - in regards to the salt level, not where it stands on the stand. You should already know that. \u003c\/p\u003e","brand":"Sera","offers":[{"title":"Default Title","offer_id":53647227978027,"sku":null,"price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1141\/1330\/files\/serahydrometer.jpg?v=1780681931","url":"https:\/\/aquariumfish.com\/products\/sera-saltwater-hydrometer","provider":"AquariumFish.com","version":"1.0","type":"link"}