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Best Marina Aquarium Heaters

Penn-Plax Cascade Heat Aquarium Heater – Fully Submersible – Great for Freshwater and Saltwater Fish Tanks – 13.5” Length – 300 Watt

  • FULLY SUBMERSIBLE AQUARIUM HEATER: The 300W Cascade Aquarium Heater easily maintains healthy water temperature within a 1° accuracy, and can be set anywhere between 68 ℉ and 89 ℉, by using the red control knob. The 300W model works great for 55 – 75 gallon fish tanks..
  • VISIBLE & ACCURATE TEMPERATURE SCALE: With an easy to read setting scale in both Celsius and Fahrenheit, it’s easy to see the temperature adjustments being made. To increase the temperature, rotate the control knob counter-clockwise, and to decrease, rotate it clockwise.
  • or, follow the + and – symbols located near the control knob..
  • ORANGE PILOT LIGHT: Our Cascade Heat Aquarium Heaters feature a pilot light that indicates the heating cycle status. This means that it will go on and off by itself as the thermostat cycles the heating element on and off. In other words, orange light = heater is on. Similarly, these aquarium heaters make a faint click when turning off..
  • ADDITIONAL FEATURES: In addition to being composed of heavy-duty and shock-resistant glass, these fully submersible aquarium heaters can be placed either horizontally or vertica....
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Penn-Plax Warm Tone LED Aquarium Heater – Fully Submersible – Great for Freshwater and Saltwater Fish Tanks – 18” Length – 500 Watt

  • FULLY SUBMERSIBLE AQUARIUM HEATER: The 500W Warm Tone LED Aquarium Heater easily maintains healthy water temperature, and can be set anywhere between 61 ℉ and 90 ℉, by using the precise adjustment dial. The 500W model works great for 80 – 200 gallon fish tanks..
  • LED DISPLAY: With an easy to read LED display, our Warm Tone Aquarium Heaters accurately show the water temperature, allowing you to monitor and adjust it as needed..
  • ADDITIONAL FEATURES: In addition to being composed of high quality quartz tube and electrical components for maximum safety and durability, these fully submersible aquarium heaters can be placed either horizontally or vertically..
  • PLEASE NOTE: Do not operate heater outside of aquarium, and never submerse a hot heater into an aquarium – only submerse a cool heater. After placing the heater into your aquarium, wait 15 minutes before turning on. This allows the thermostat to adjust itself to water temperature..
  • MEASUREMENTS: Overall Length = 18” / Overall Diameter = 1.5” / Suction Cup Diameter = 1.5” / Wattage = 500W / Voltage = 120V.
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Marina 5 Gallon (19 L) LED Aquarium Kit – Ideal for Beginner Aquarists and New Fish-Keepers

  • Comes with everything needed for your first fish tank.
  • Use our Nutrafin Aqua Plus Water Conditioner to make tap water safe for fish.
  • Marina's Slim S20 clip-on aquarium filter keeps your water clear and uses quick-change filter cartridges.
  • Long-lasting, natural daylight effect LED aquarium lighting module is incorporated into the fish tank's canopy.
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Marina CUBUS Glass Betta Kit – Elegant Glass Aquarium for Homes or Offices

  • Easy Setup: The Marina Cubus Betta Kit contains everything you need to keep bettas in a comfortable and attractive setting. The elegant glass aquarium brings a stylish decorative element to homes or offices..
  • Bright and Vibrant: The aquarium comes with a flexible, energy-efficient clip-on light with 3 powerful LED lights that vividly enhance betta colors..
  • Quick Access: The cover has an opening for breathing and easy access to fish, with the pedestal base protecting surfaces from damages..
  • Volume: 0.9 U.S. gallon (3.4 L) aquarium..
  • Dimensions: 5.9” x 5.9” x 5.9” (15 x 15 x 15 cm)..
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Marina Deluxe Floating Thermometer with Suction Cup

  • Aquarium Accessory: With water temperature being such a critical factor for the well-being of fish, it’s important to have a good thermometer. This Marina Floating Thermometer is designed to float in the water in a vertical position..
  • Ideal Temperature Range: Includes a safety zone indicator range for most tropical fish..
  • Easy Setup: Equipped with suction cups for optional installation on your aquarium glass..
  • Easy to Read: Accurate and easy to read, it provides temperature readings in Centigrade and Fahrenheit..
  • Usage: Ideal for both fresh and saltwater aquariums..
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AQUA KT Aquarium Ruins Ancient Greek Leaning Vase Rock Broken Barrel Fish Hiding Cave for Cichlid Betta Marine Freshwater Fish Tank Decoration

  • Wonderful Show in Aquarium Landscape! This Aquarium Leaning Vase has clear carving line that can upgrade your whole aquarium beauty level necessarily, and it looked naturally in fish tank, such like betta fish tank..
  • Aquarium Vase Cave can Make Your Love Fishes Happy! Unobstructed Fish Cave will carry a lot of happiness from your fishes when they through it. They will enjoy themselves in stay with this leaning vase..
  • AQUA KT Large and Tall Aquarium Decorations is Suitable for Freshwater and Marina Aquariums! Universal centerpiece for fish tank, decorate your tank full of natural and wonderful! Absolute good choice for your love fishes..
  • Simplify Your Daily Care to your Fish Tank. Our fish tank Greek barrel rocks was made of resin material, it can not only offer friendly touching feel to your fishes, but also no special care in need when place it into the fish tank..
  • Universally Applicable for Fish Tank Decoration! Aquarium Barrel Size: 6.1 x 5.1 inch (Length x Height), each package include 1 PCS aquarium vase rock decoration. Let our vase rock create a comfortable live environment ....
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MarineLand ML Penguin PRO 175 Filter 10/1 CT, 78179

  • With bio-wheel technology: bio-wheel technology provides wet/dry biological filtration..
  • Multi-stage filtration: delivers mechanical, chemical and biological Aquarium filtration to maintain a clean aquatic environment..
  • Compatibility: use with Marine Land rite-size B filter cartridge..
  • Six sizes: 100 (for up to 10 gallons), 125 (for up to 20 gallons), 175 (for up to 30 gallons), 275 (for up to 50 gallons), 375 (for up to 75 gallons), 450 (for up to 90 gallons)..
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Aquarium Addiction Funny Aquarium T-Shirt

  • You love Fish Keeping and Tanks? You are a proud Fish Owner? Then get this cool Aquarium Addiction design now or use it as a birthday or christmas gift idea for someone who loves Fish Keeping and Tanks..
  • You like to use aquarium filters, heaters and decorations and always want to watch your fishes swim? Don't think any longer and grab this Aquarium Addiction design | Funny Aquarium design now!.
  • Lightweight, Classic fit, Double-needle sleeve and bottom hem.
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Aquarium Heater

  • You love Fish Keeping and Saltwater Tanks? You are a proud Fish Owner? Then get this cool Aquarium Evolution Design now or use it as a birthday or....
  • You like to use aquarium filters, heaters and decorations and always want to watch your fishes swim in the aquarium? Don't think any longer and grab....
  • Lightweight, Classic fit, Double-needle sleeve and bottom hem.
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OIIKI 10 PCS Aquarium Heater Suction Cups with Clips, Air Hose Tube Holders Clamps for Fish Tank (Black)

  • Material: The Aquarium Heater Holders are made of plastic and rubber, which is perfect for fish tank, aquarium or any other glass surface..
  • Size: The diameter of suction cup is about 33mm/1.30inch, with 24mm/0.94inch clip, which can hold 1" diameter of aquarium heater, PVC tubing or rain bar..
  • Application: The Aquarium Heater Holders can fit most standard aquarium heaters, not for airline / air tube..
  • Features: Each suction Cup comes with one clip, which will help to keep your aquarium heater firmly in place with these suction clips..
  • Package included: 10 PCS Aquarium Heater Suction Cups with Clips in total..
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AquaMiracle Adjustable 100W Aquarium Heater Submersible Fish Tank Heater Super Short Aquarium Heater with LED Digital Display Thermostat, for Tanks 10-20 Gallons

  • SUPER MINI SIZE – This aquarium heater is SUPER SHORT in length – might be the shortest heater in the market. It is only a bit more than HALF of the length comparing with the traditional fish heaters! The innovative super short length perfectly solves the headache of the fish keepers on the traditional aquarium heaters! Takes up less space, easy to hide, but in full power! Temperature range is 64-93F..
  • ACCURATE TEMPERATURE – Thanks to the intelligent inverter technology, with the in-built chips the thermostat keeps the heater at a constant temperature at an accuracy of 1F, much more accurate than the traditional knob-controlled fish heaters. The thermostat shows 2 readings – the current temperature and the set temperature – very easy to operate..
  • DRY RUN / OVERHEATING PROTECTION – Full consideration of safety. With the multiple protections this fish tank heater will stop working when the water level is lower than the minimum water level (DRY RUN PROTECTION) or when the water temperature exceeds 97F (OVERHEATING PROTECTION). You are free from “cooking fish”!.
  • MEMORY FUNCTION – The last setting is stored in ....
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AquaMiracle Adjustable 200W Aquarium Heater Submersible Fish Tank Heater Super Short Aquarium Heater with LED Digital Display Thermostat, for Tanks 20-40 Gallons

  • SUPER MINI SIZE – This aquarium heater is SUPER SHORT in length – might be the shortest heater in the market. It is only a bit more than HALF of the length comparing with the traditional fish heaters! The innovative super short length perfectly solves the headache of the fish keepers on the traditional aquarium heaters! Takes up less space, easy to hide, but in full power! Temperature range is 64-93F..
  • ACCURATE TEMPERATURE – Thanks to the intelligent inverter technology, with the in-built chips the thermostat keeps the heater at a constant temperature at an accuracy of 1F, much more accurate than the traditional knob-controlled fish heaters. The thermostat shows 2 readings – the current temperature and the set temperature – very easy to operate..
  • DRY RUN / OVERHEATING PROTECTION – Full consideration of safety. With the multiple protections this fish tank heater will stop working when the water level is lower than the minimum water level (DRY RUN PROTECTION) or when the water temperature exceeds 97F (OVERHEATING PROTECTION). You are free from “cooking fish”!.
  • MEMORY FUNCTION – The last setting is stored in ....
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AquaMiracle Adjustable 150W Aquarium Heater Submersible Fish Tank Heater Super Short Aquarium Heater with LED Digital Display Thermostat, for Tanks 15-30 Gallons

  • SUPER MINI SIZE – This aquarium heater is SUPER SHORT in length – might be the shortest heater in the market. It is only a bit more than HALF of the length comparing with the traditional fish heaters! The innovative super short length perfectly solves the headache of the fish keepers on the traditional aquarium heaters! Takes up less space, easy to hide, but in full power! Temperature range is 64-93F. 4 sizes for 10/20/30/40 Gallon tanks..
  • ACCURATE TEMPERATURE – Thanks to the intelligent inverter technology, with the in-built chips the thermostat keeps the heater at a constant temperature at an accuracy of 1F, much more accurate than the traditional knob-controlled fish heaters. The thermostat shows 2 readings – the current temperature and the set temperature – very easy to operate..
  • DRY RUN / OVERHEATING PROTECTION – Full consideration of safety. With the multiple protections this fish tank heater will stop working when the water level is lower than the minimum water level (DRY RUN PROTECTION) or when the water temperature exceeds 97F (OVERHEATING PROTECTION). You are free from “cooking fish”!.
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