{"product_id":"fluval-p-series-aquarium-heaters","title":"Fluval P Series Aquarium Heaters","description":"\u003cp\u003eThe \u003cstrong\u003eFluval P Series\u003c\/strong\u003e is a line of compact, preset submersible heaters built for nano and small aquariums. Each one holds a steady 76 to 78 F (24 to 26 C) with no dial to fuss over, so you simply submerge it, plug it in, and let it maintain a stable tropical temperature. The shatterproof body is fully submersible and safe for both freshwater and saltwater.\u003c\/p\u003e\n\u003cp\u003eRunning a bigger tank? Step up to the adjustable \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fluval-t-series-aquarium-heaters\" style=\"color:#666;font-weight:600;text-decoration:underline;\"\u003eFluval T Series\u003c\/a\u003e (15 to 80 gallons) or the premium mirror-glass \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fluval-m-series-aquarium-heaters\" style=\"color:#666;font-weight:600;text-decoration:underline;\"\u003eFluval M Series\u003c\/a\u003e, and keep an eye on your water with a \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/squeakys-digital-thermometer-aquarium-lcd-probe\" style=\"color:#666;font-weight:600;text-decoration:underline;\"\u003edigital thermometer\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3 style=\"margin:16px 0 6px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"margin:4px 0 4px;padding-left:20px;line-height:1.5;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreset 76 to 78 F (24 to 26 C).\u003c\/strong\u003e Factory-calibrated to the tropical community sweet spot, with no dial to bump or recalibrate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShatterproof body.\u003c\/strong\u003e Durable construction resists cracking, so it holds up in busy nano tanks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully submersible.\u003c\/strong\u003e Mount it vertically or horizontally, completely underwater, using the included suction cups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlim, hideable profile.\u003c\/strong\u003e The compact shape tucks behind decor or into a rear chamber with ease.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndicator light.\u003c\/strong\u003e A small amber light shows at a glance when the heater is actively warming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresh or salt water.\u003c\/strong\u003e Safe for tropical community tanks, bettas, shrimp, and nano reef setups alike.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:16px 0 6px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eChoose Your Size\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;margin:8px 0 4px;font-size:0.95em;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#666;color:#fff;text-align:left;padding:7px 10px;border:1px solid #666;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"background:#666;color:#fff;text-align:left;padding:7px 10px;border:1px solid #666;\"\u003eAquarium size\u003c\/th\u003e\n\u003cth style=\"background:#666;color:#fff;text-align:left;padding:7px 10px;border:1px solid #666;\"\u003eWattage\u003c\/th\u003e\n\u003cth style=\"background:#666;color:#fff;text-align:left;padding:7px 10px;border:1px solid #666;\"\u003ePrice\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eP10\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003eUp to 3 US gal (10 L)\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003e10 W\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003e$24.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eP25\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003eUp to 6 US gal (23 L)\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003e25 W\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003e$30.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eP50\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003eUp to 15 US gal (57 L)\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003e50 W\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003e$35.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:4px 0 0;\"\u003eAll three hold the same preset 76 to 78 F range. Pick by tank size: match or slightly exceed your aquarium volume for steady heating.\u003c\/p\u003e\n\u003ch3 style=\"margin:16px 0 6px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eHow to Use\u003c\/h3\u003e\n\u003cp\u003ePosition the heater fully underwater near good flow, ideally close to the filter outlet so heated water circulates evenly. Let it sit for 15 to 30 minutes before plugging in so the internal thermostat matches the water. Because the P Series is preset, there is nothing to adjust; the indicator light cycles on and off as it holds temperature. Always unplug before removing it from the water.\u003c\/p\u003e\n\u003ch3 style=\"margin:16px 0 6px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan I change the temperature?\u003c\/strong\u003e\u003cbr\u003eNo. The P Series is factory preset to 76 to 78 F, which suits most tropical community fish, bettas, and shrimp. If you need a specific setpoint, choose the adjustable T Series or M Series instead.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich size do I need?\u003c\/strong\u003e\u003cbr\u003eMatch the model to your tank: P10 for up to 3 gallons, P25 for up to 6 gallons, and P50 for up to 15 gallons. In a cold room, size up to the next model.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it safe for saltwater?\u003c\/strong\u003e\u003cbr\u003eYes. Every P Series heater is rated for both freshwater and saltwater aquariums.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShould I use a thermometer?\u003c\/strong\u003e\u003cbr\u003eYes. A separate thermometer lets you confirm the water is holding in the preset range, which is good practice with any heater.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"P10 10w (3 Gal)","offer_id":48910063141083,"sku":"A743","price":24.99,"currency_code":"USD","in_stock":true},{"title":"P25 25w (6 Gal)","offer_id":48910063173851,"sku":"A744","price":30.99,"currency_code":"USD","in_stock":true},{"title":"P50 50w (15 Gal)","offer_id":48910063206619,"sku":"A745","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/A743_packaging-1.jpg?v=1782465764","url":"https:\/\/squeakysaquatics.com\/products\/fluval-p-series-aquarium-heaters","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}