Turn off light during gravel change

JesusIsLove912

And what about the heater?
 

WRWAquarium

Hi

If your changing the gravel or water change?

Either way the light can stay on whole time. Heater and filter I would turn off if the water level is going to drop. Heaters need to be submersed if running, filters too.
 

jpaquatics

Turn off the heater because they’re supposed to be submerged at all times. As the water level gets lower it will expose the heater and can cause it to fail. The lights are fine being on though.
 

airfix2

yes. dont want to risk electrocuting yourself. I always turn off the filter, heater, light and air pump before doing a water change.
 

SparkyJones

technically, if you will lower the water level, and have your hands in the tank sloshing things around to change substrate.... possibly, Then nothing being plugged in is a good idea, just as a precaution to the alternative which is electric shock.

Just saying.... LOL

Should probably take the fish out to a separate container with an airstone or sponge filter, with the clear water from the tank also to make the change, just in case quite a bit of stuff is kicked up from the substrate in the switch. it can be a few hours for everything to settle again.
 

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