I have set the heater at 24-25C which should be the safe fallback temperature in case the temperature inside the aquarium drops. If you have an open aquarium with the light tubes on top of the tank you might wonder what I am talking about. You see – the Juwel tank is closed tank which means that the light tubes are inside the tank right next to the water.
The light tubes also emit heat and since the tubes are right next to the water it has a significant effect on the heating of the eco system. Despite that I have set the temperature to be 24-25C in the heater, I constantly measure water temperatures of 27-28C. I haven’t found an easy way to cool down the tank since our apartment temperature is anyway quite high too, even if not 27C. I have and air diffuser plugged in to the Juwel Bioflow pump which creates extra air flow to the water. This is recommended in any case, but necessary with high temperatures.
Do you think my water temperature is too high for normal fish like guppies or platys?
I have also been wondering if the temperature has a negative effect to any plants? I guess not since they look pretty healthy, but somehow this temperature makes me nervous. I hope in vain?
I have the same problem. Especially since I installed the light reflectors. In the morning, the temperature is around 25 but in the evening the temperature has rised to 27-28 degrees.
I can imagine the light reflectors adding a lot of heat. Did you notice any dramatic improvement after installing them? I just ask, because I’ve been quite happy with my lights (you just have to buy good ones to start with!) and I could see the heat being a bigger problem.
What I ended up doing when it become too hot was that I simply had to keep the back lid open a bit. It lowered the temperature with just maybe two degrees.
I have the same problem. This is so irritating. LEDs aren’t supposed to be so hot!
And I don’t even have LEDs 😕