The best thing to do is to contact our customer service directly at https://helpcenter.galaxus.ch/hc/de/requests/new. Your request can then be examined individually.

I couldn't find anything like that in the instruction manual. I assume it only shows the set temperature.

Hey growerio Actually, there's not much left for a tank that likes to cool down. But if you're looking for something special, I have 5 pieces in stock that take 5-6 hours. Please get in touch with me by email. rsixsbk@gmail.con

Hard to say as this is not specified, but look here: https://www.hardwareluxx.de/community/f137/das-grosse-hailea-chiller-how-803340.html