I have my aquarium set up but no fish yet. It's 34l and I have a 25watt heater.
The heater is set to around 24 degrees but the thermometer (it came free with the heater and is one of the ones you stick to the outside of the tank) is reading 29 to 30 degrees.
I've turned the heater down to 22 and the water does feel quite warm. But I don't know whether to trust the heater setting, or the external thermometer, so I'm not sure what the water temperature the water is actually at
Need to get this sorted before the fish arrive!
The heater is set to around 24 degrees but the thermometer (it came free with the heater and is one of the ones you stick to the outside of the tank) is reading 29 to 30 degrees.
I've turned the heater down to 22 and the water does feel quite warm. But I don't know whether to trust the heater setting, or the external thermometer, so I'm not sure what the water temperature the water is actually at
Need to get this sorted before the fish arrive!