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CO2 mixer for planted aquarium

Step 5Heater

Ideas for a future.
That mixer is actually quite neat for placing heater. Main reason its just aesthetic. Basically You haven't got heater inside tank. Second reason is that the heat is spreading in tank more evenly (depends of inlet method of course). From the other hand, sometimes it might be dangerous. If for some reasons big amount of air will flow inside mixer and air level will reach the point when heater (or part of heater) will be exposed to air, the heater might crack. To prevent possible electric shock, worth connect heater to RCD switch. Anyway I strongly recommend unplug everything before you start digging inside the tank.
Hint: you can buy heater with water level sound alarm.
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