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Thermometer VS heater in marine tank. Which is wrong?

I have a 14 gallon nano cube and Im using a digital thermometer in the last chamber with the return pump, I have it rubber banded to the pump to keep it from floating. The temp reads 81.4, but when I touch the water it does not feel that warm at all. My house is def not that hot, and when I unplugged the heater it only dropped a few degrees. I added some live rock the the chamber with the heater, so there's less water in their but the heater should still maintain its temp.

I added some Phos X to the last chamber, maybe that's causing some reaction thats raising the temp in the last chamber? I dunno. Im gonna mess with it later when Im not acclimating something. Any idea why my temp reads so high?

Im gonna move the thermometer and see if it reads different in the actual tank.

Yup , you got it. The pump gives off heat, and thus makes the thermometer read higher than the actual temp.
Also , do not rely on a heaters thermostat as a guage of water temp.
They are extremely inaccurate and will drift even further from being accurate as they age.

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Coralife Digital Thermometer $8.5 Coralife Digital Thermometer is economically priced and digitally accurate, the Coralife Digital Thermometer's sophisticated look is completely transportable. This allows you to bring it with you as you graduate to larger, more involved aquarium systems. Attach this compact device to the side of your aquarium for accurate temperature readings to ±1.5°F. Temperature probe sits inside aquarium to monitor temperature, while LCD provides °C or °F readings from -10°F to 140°F. Includes power button, mounting suction cups, 39" temperature probe, and replaceable battery. 2-1/4" x 1-1/2" * Compact digital aquarium thermometer with easy-to-read LCD * Displays aquarium water temperature in Fahrenheit or Celsius * Thermometer probe accurately senses aquarium water temperature

R-Zilla Digital Thermometer for Terrariums $11.5 R-Zilla Digital Thermometer for Terrariums, measures comfort with digital precision allowing Cold-blooded reptiles stay healthier and more active with the accurate monitoring of a Digital Thermometer for Terrariums. Press a button to display temperatures from -10°F to 140°F (-23°C to 60°C) in either Fahrenheit or Celsius, graduated in 0.1° increments that reveal temperature trends long before they can harm pets. Equal accuracy is achieved in both aquatic and terrestrial environments, simply by positioning a temperature probe (attached to the thermometer by a 39" lead wire) in the spot to be monitored. Keep the lead out of sight by securing it with the included suction cups. Choose constant temperature monitoring, or turn the unit off to save battery power (a battery is included.) * Measures air or water temperature * Precise readings to 0.1° Fahrenheit or Celsius * Easy mounting with long probe and included suction cups

NEW! Fluval Edge Digital Aquarium Thermometer $1.81 Water temperature is an important factor that affects the health of fish. The Fluval vertical mount digital thermometer (1.75" 4.45 cm in length) is accurate and easy to read. It ranges from 18 to 30 degrees C (64 to 86 degrees F) . It comes with an adhesive backing which makes it easy to mount to the outside glass. Ideal for all fresh and saltwater aquarium setups.

4 Paws Reptile Habitat Thermometer $3.37 This is a highly accurate thermometer to help you keep your pet's habitat at just the right temperature.

Digital LCD Aquarium Thermometer $18.88 This digital aquarium thermometer features an LCD display with a clock. This unit also features a low/high temperature alert preprgrammed for tropical fish and a memory function. for salt or freshwater use. Includes 3' cord with plastic probe and suction cup. Displays in farehheit.

NEW! Marine Conditioner (500 ml) $14.29 Instant Ocean's Marine Water Conditioner is used for regular maintenance including water changes, replacing evaporative water or when setting up new aquariums. Product Features Advanced BioPolymers help to protect fish as well as promotes healthier water conditions Detoxifies heavy metals, chlorine and chloramines Does not foam in protein skimmers 5ml treats 10 gallons

NEW! Marine Conditioner (100 ml) $6.49 Instant Ocean's Marine Water Conditioner is used for regular maintenance including water changes, replacing evaporative water or when setting up new aquariums. Product Features Advanced BioPolymers help to protect fish as well as promotes healthier water conditions Detoxifies heavy metals, chlorine and chloramines Does not foam in protein skimmers 5ml treats 10 gallons

NEW! Marine Conditioner (250 ml) $8.44 Instant Ocean's Marine Water Conditioner is used for regular maintenance including water changes, replacing evaporative water or when setting up new aquariums. Product Features Advanced BioPolymers help to protect fish as well as promotes healthier water conditions Detoxifies heavy metals, chlorine and chloramines Does not foam in protein skimmers 5ml treats 10 gallons

Digital Aquarium Thermometer $9.79 Digital Aquarium Thermometer is fully submersible. Digital readout faces forward in the tank. Suction cups to the glass

Digital Terrarium Thermometer $9.79 Digital Terrarium thermometer with digital readout in Fahrenheit or Celsius. Has a remote sensor probe for accurate readings

Dual Thermometer / Humidity Gauge $18.61 Allows for the monitoring of temperature and humidity of your terrarium with one unit. Thermometer scale: 20° to 120°F (-6° to 49°C). Humidity Scale: 0 to 100%.

Hagen Living Sea Hydrometer $6.49 Hagen Living Sea Hydrometer Proper salt content is vital to the health and well being of captive marine species. Large salinity variances can cause stress to delicate organisms. Using this aquarium hydrometer determines the actual specific gravity of marine water aquariums on an ongoing basis. It also includes a thermometer. Features: Includes an easy-to-read thermometer Ensures all replacement water has the same salinity as the rest of aquarium Keeps marine fish happy and healthy Accurate! Item Specifications: Size: 8"

High Range Reptile Thermometer $3.95 Liquid crystal thermometer for all types of reptile, amphibian or invertebrate enclosures. Scale from 70° to 105°F (21° to 40°C), with easy to read crystal coloring.Proper temperatures are a necessity for digestion and metabolic functions in reptiles and amphibians. This is the ideal "first time" thermometer for any cage, a reptile should never be sold or bought without one!

NEW! Biorb Marine Service Kit $20.99 The standard biOrb Service Kit is suitable for all freshwater aquariums. The kit contains everything you will need to service your aquarium including conditioners to remove harmful chlorine from your tap water. The biOrb filter kit also contains a cleaning pad and full instructions.The standard biOrb Service Kit is suitable for all freshwater fish (both coldwater and tropical).The biOrb filter cartridge works like a waste bin, trapping dirt, once full it should be thrown away and replaced with a new one. This should be done every 1-2 months depending on the size of the aquarium and the number of fish kept.A natural substrate in the cartridge polishes the water and removes impurities, helping to keep the water clear between changes it has an active life of 8 weeks.

Coralife Digital Thermometer, 1/4 x 1 1/2 $9.5 Attach this compact device to the side of your aquarium for accurate temperature readings to ±1.5°F. Temperature probe sits inside aquarium to monitor temperature, while LCD provides °C or °F readings from -10°F to 140°F. Includes power button, mounting suction cups, 39" temperature probe.

NEW! Microbe-Lift Clarifier Plus Reef & Marine (4 oz) $6.49 Clarifier Plus Quickly Clears Cloudy Water Will keep your aquarium water crystal clear. It is safer for all your marine fish and invertebrates. Will not cause invertebrates to close up or coat your fishes gills. Nitrate, phosphate and silicate free. Directions: Add MICROBE-LIFT/ Reef & Marine Clarifier Plus, as listed below, for the clarifying and ""polishing"" purpose intended. Application may be repeated several times, if warranted at 24 hour intervals. Product is safe for fish, corals, invertebrates and filter-feeders, and will not affect pH. On application, product may appear slightly cloudy in your tankwater, but this disappears quickly. Dosage For cloudy water: Add 2 tsp. or 1 ½ capfuls (10mL.) per 50 gal. (189 L.). For ""polishing"" water: Add 1 ½ tsp. or 1 capful (7 mL.) per 50 gal. (189 L.) weekly. Ecological Laboratories Inc., markets a series of Reef & Marine supplements. Each is a concentrated formula designed to replenish specific components. We recommend using all of them, synergistically, toward restoring nature's balance. Cautions Keep out of the reach of children Follow directions carefully This product is intended for use with all ornamental and aquarium fish but may not be used with fish intended for human consumption.

Exo-Terra Liquid Crystal Thermometer $3.99 Liquid Crystal Thermometer has a wide range horizontal thermometer. It's easy to read and easy to install in your pet's terrarium. Just remove the paper backing, make sure the surface is clean and firmly press the thermometer against the surface. Make sure you don't place it in the coolest or warmest place in the terrarium. Buy one today for your pet.Range: 68o-107oF (20oC to 42oC).

NEW! Microbe-Lift All in One Reef & Marine (4 oz) $5.99 A convenient way of dosing all of our Reef & Marine supplements in one application MICROBE-LIFT/ All-In-One Master Supplement is a newly developed proprietary formulation that was created to simplify maintaining reef environments. It has a strategically balanced ratio of the following 6 MICROBE-LIFT reef products: Chelated Iron, Essential Minerals & Trace Elements, Vitamins & Amino Acids, Calcium Concentrate, Iodide & Bromide, Strontium & Molybdenum. MICROBE-LIFT/ All-In-One Master Supplement is a time-saving product that is especially convenient and economically prudent for smaller reef systems, such as, "nano reef tanks" and bio-cubes". Why MICROBE-LIFT/Reef & Marine Supplements? Sea salt mixes can contain 70 or more of natural saltwater's essential and trace components. These help sustain water quality for the fish, corals, invertebrates an/or macro-algae as nature intended. In an aquarium "closed system", protein skimmers, ozonizers, carbon filters, and dynamic bio-chemical processes can reduce the important components, including calcium, stronmtium, molybdenum, iodide, bromide, iron, vitamins, amino acids, and essential trace minerals. Ingredients: MICROBE-LIFT/All-in-One Master Supplement is a pH balanced and proportionalzed blending of the six MICROBE-LIFT Reef & Marine supplements - concentrates including: Calcium, Strontium/Molybdenum, Iodide/Bromide, Vitamins/Amino Acids, Minerals/ Elements, Iron/Thiamine (B-1), Cyanocobalamin (B-12), packaged as a convenient master supplement. Fortified with Vitamin D. Dosage Add 2-4 capfuls (14-28 mL.) per 50 gal. (189 L.) 1-2 times per week as a broad spectrum total supplement of over 60 components of sea water. Usage may safely be double if desired. Cautions Keep out of the reach of children Follow directions carefully This product is intended for use with all ornamental and aquarium fish but may not be used with fish intended for human consumption.

NEW! Microbe-Lift All in One Reef & Marine (16 oz) $16.89 A convenient way of dosing all of our Reef & Marine supplements in one application MICROBE-LIFT/ All-In-One Master Supplement is a newly developed proprietary formulation that was created to simplify maintaining reef environments. It has a strategically balanced ratio of the following 6 MICROBE-LIFT reef products: Chelated Iron, Essential Minerals & Trace Elements, Vitamins & Amino Acids, Calcium Concentrate, Iodide & Bromide, Strontium & Molybdenum. MICROBE-LIFT/ All-In-One Master Supplement is a time-saving product that is especially convenient and economically prudent for smaller reef systems, such as, "nano reef tanks" and bio-cubes". Why MICROBE-LIFT/Reef & Marine Supplements? Sea salt mixes can contain 70 or more of natural saltwater's essential and trace components. These help sustain water quality for the fish, corals, invertebrates an/or macro-algae as nature intended. In an aquarium "closed system", protein skimmers, ozonizers, carbon filters, and dynamic bio-chemical processes can reduce the important components, including calcium, stronmtium, molybdenum, iodide, bromide, iron, vitamins, amino acids, and essential trace minerals.

NEW! Microbe-Lift All in One Reef & Marine (8 oz) $6.49 A convenient way of dosing all of our Reef & Marine supplements in one application MICROBE-LIFT/ All-In-One Master Supplement is a newly developed proprietary formulation that was created to simplify maintaining reef environments. It has a strategically balanced ratio of the following 6 MICROBE-LIFT reef products: Chelated Iron, Essential Minerals & Trace Elements, Vitamins & Amino Acids, Calcium Concentrate, Iodide & Bromide, Strontium & Molybdenum. MICROBE-LIFT/ All-In-One Master Supplement is a time-saving product that is especially convenient and economically prudent for smaller reef systems, such as, "nano reef tanks" and bio-cubes". Why MICROBE-LIFT/Reef & Marine Supplements? Sea salt mixes can contain 70 or more of natural saltwater's essential and trace components. These help sustain water quality for the fish, corals, invertebrates an/or macro-algae as nature intended. In an aquarium "closed system", protein skimmers, ozonizers, carbon filters, and dynamic bio-chemical processes can reduce the important components, including calcium, stronmtium, molybdenum, iodide, bromide, iron, vitamins, amino acids, and essential trace minerals.

Ocean Sun 10,000K Deep Water 15" $22.25 Size: 15" Wattage: 14WThe Ocean Sun is a 10,000k high intensity lamp which creates a beautiful "deep ocean" effect in your marine or freshwater aquarium. This emission spectrum, strong in the blue regions, supports the photo biological processes of marine algae and freshwater plants. Ocean Sun promotes the growth of zooxanthellae algae, essential for the growth and well being of all photosynthetic corals and invertebrates. Ideal for all marine aquariums, and freshwater aquariums where a deep water effect is desired. Zoo Med's line of fluorescent aquarium lamps are made in Europe for ultra high quality, color, and longer burn life. Our energy saving T-8 sizes can save you up to $30.00 per year in electricity over the thicker T-12 size lamps! Effective up to 10,000 hours.

Ocean Sun 10,000K Deep Water 18" $22.25 Size: 18" Wattage: 15WThe Ocean Sun is a 10,000k high intensity lamp which creates a beautiful "deep ocean" effect in your marine or freshwater aquarium. This emission spectrum, strong in the blue regions, supports the photo biological processes of marine algae and freshwater plants. Ocean Sun promotes the growth of zooxanthellae algae, essential for the growth and well being of all photosynthetic corals and invertebrates. Ideal for all marine aquariums, and freshwater aquariums where a deep water effect is desired. Zoo Med's line of fluorescent aquarium lamps are made in Europe for ultra high quality, color, and longer burn life. Our energy saving T-8 sizes can save you up to $30.00 per year in electricity over the thicker T-12 size lamps! Effective up to 10,000 hours.

Ocean Sun 10,000K Deep Water 30" $22.25 Size: 30" Wattage: 25WThe Ocean Sun is a 10,000k high intensity lamp which creates a beautiful "deep ocean" effect in your marine or freshwater aquarium. This emission spectrum, strong in the blue regions, supports the photo biological processes of marine algae and freshwater plants. Ocean Sun promotes the growth of zooxanthellae algae, essential for the growth and well being of all photosynthetic corals and invertebrates. Ideal for all marine aquariums, and freshwater aquariums where a deep water effect is desired. Zoo Med's line of fluorescent aquarium lamps are made in Europe for ultra high quality, color, and longer burn life. Our energy saving T-8 sizes can save you up to $30.00 per year in electricity over the thicker T-12 size lamps! Effective up to 10,000 hours.

Ocean Sun 10,000K Deep Water 42" $22.25 Size: 42" Wattage: 38WThe Ocean Sun is a 10,000k high intensity lamp which creates a beautiful "deep ocean" effect in your marine or freshwater aquarium. This emission spectrum, strong in the blue regions, supports the photo biological processes of marine algae and freshwater plants. Ocean Sun promotes the growth of zooxanthellae algae, essential for the growth and well being of all photosynthetic corals and invertebrates. Ideal for all marine aquariums, and freshwater aquariums where a deep water effect is desired. Zoo Med's line of fluorescent aquarium lamps are made in Europe for ultra high quality, color, and longer burn life. Our energy saving T-8 sizes can save you up to $30.00 per year in electricity over the thicker T-12 size lamps! Effective up to 10,000 hours.

Ocean Sun 10,000K Deep Water 48" $22.25 Size: 48" Wattage: 32WThe Ocean Sun is a 10,000k high intensity lamp which creates a beautiful "deep ocean" effect in your marine or freshwater aquarium. This emission spectrum, strong in the blue regions, supports the photo biological processes of marine algae and freshwater plants. Ocean Sun promotes the growth of zooxanthellae algae, essential for the growth and well being of all photosynthetic corals and invertebrates. Ideal for all marine aquariums, and freshwater aquariums where a deep water effect is desired. Zoo Med's line of fluorescent aquarium lamps are made in Europe for ultra high quality, color, and longer burn life. Our energy saving T-8 sizes can save you up to $30.00 per year in electricity over the thicker T-12 size lamps! Effective up to 10,000 hours.

NEW! Fluval Water Polishing Pad for 104/105/204/205 Models (3 pack) $5.32 Fluval Water Polishing Pads are uniquely designed to fit Fluval Canister Filters. These extra thick micro-fine polyester pads effectively trap micro particles and debris as water passes through. Fluval Water Polishing Pads are ideally used when cloudy water occurs or after tank maintenance to provide crystal clear aquarium water. For freshwater and marine environments.

NEW! Fluval Water Polishing Pad for 304/305/404/405 Models (6 pack) $6.88 Fluval Water Polishing Pads are uniquely designed to fit Fluval Canister Filters. These extra thick micro-fine polyester pads effectively trap micro particles and debris as water passes through. Fluval Water Polishing Pads are ideally used when cloudy water occurs or after tank maintenance to provide crystal clear aquarium water. For freshwater and marine environments.

NEW! Fluval Water Polishing Pad for FX5 (3 pack) $7.53 Fluval Water Polishing Pads are uniquely designed to fit Fluval FX5 High Performance Canister Filters. These extra thick micro- fine polyester pads effectively trap micro particles and debris as water passes through. Fluval Water Polishing Pads are ideally used when cloudy water occurs or after tank maintenance to provide crystal clear aquarium water. For freshwater and marine environments.

NEW! TetraAqua AquaSafe Water Conditioner (1.69 oz) $4.11 AquaSafe Water Conditioner (1.69 oz)BioExtract formula contains seaweed extracts (natural biopolymers), which support the development of beneficial filter bacteria for healthy and clear water. The added ingredients help to reduce aquarium pollution by strengthening the bacterial bed. As always, Tetra’s AquaSafe water conditioner makes tap water safe for fish. Works in seconds to neutralize chlorine, chloramines, and heavy metals present in tap water that can be harmful to fish. One teaspoon treats 10 gallons. Provides a slime coating to help wounds heal and protect fish from abrasions. Unique colloid ingredients have been designed to protect fish’s delicate gills and membranes. AquaSafe can be used with freshwater and marine fish. AquaSafe is the market leading water conditioner brand in the US and has been protecting fish for more than 35 years.

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A great place to shop for Marine Water Thermometer products is Amazon.

JBJ Nano Cube 12 Gal. 8 Weeks old - Video #3

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