Heaters · Adjustable, electronic
hygger Precise Aquarium Heater 200W
Manufacturer-rated for aquariums of 20–40 US gal; adjustable 59–93°F.
A 200 W quartz glass heater with a controller on the cord: you set it from 59 to 93 °F in half-degree steps, it reads the water with two probes, and it beeps if a probe fails, the heater is out of the water or it overheats.
Consider: The controller stays dry outside the tank and remembers your setting through a power cut, but the glass tube has no guard around it.
US version, item HG253. Check what’s in the box before you buy.
Tank size hygger rates it for
20 to 40 US gal
Choose your tank to see where it falls.
Check it against your tank →Specifications that affect fit
- Manufacturer capacity
- 20–40 US gal
- Power
- 200 W
- Supply voltage
- 110–120 V / 60 Hz
- Dimensions
- 9.25 × 1.2 × 1.2 in (L × W × H)
To see what it costs to run, enter the watts on its label and your daily hours in the electricity cost calculator.
Before choosing this model
- Keep the whole heater at least 2 in under the water and clear of the gravel, as hygger says.
- Choose the mode: precise heats when the water falls 0.5 °F below your setting, ECO waits for a 1 °F drop.
- hygger gives a temperature tolerance of ±2 °F, so the water can settle up to 2 °F either side of your setting: set the middle of your fish’s range and check it with a thermometer in the tank.
Our buying guides size it for these tanks:
A heater rated for your tank can still fall short in a cold room: see how to size one.
Check it against your tank → Something not working? See the troubleshooting guide.
Included items & upkeep
- heater with controller
- 2 suction cups
- user manual
Plan for the routine work
- Wipe it with a soft cloth every 2 to 4 weeks so scale doesn’t build up, as hygger advises.
- Look the glass over when you clean it, and replace the heater at once if you find a crack.
To budget for replacement media and supplies, use the first-year cost calculator. For how often and how to clean it, follow the maker’s manual.