I did a water change on all three tanks yesterday, checking the temp first as usual. The trop tank was a little higher than normal at 26 C. The temp tank was also at 26 - usually I try to keep it between 20-22, but as it's all barbs in there at the moment apart from my one solitary surviving WCMM, and understocked, it shouldn't be too much of a problem. The poor ADFs, though, were up to 30 C - I'm guessing a combination of it being a tiny tank and being upstairs. The frogs seem to be coping pretty well, though, and were as lively as usual when I gave them their bloodworm. All heaters are unplugged and all got a 50% water change in water 1 degree cooler than the tank so as to hopefully cool them slightly without shocking them. So how are everyone else's tanks doing in the heat, and are you doing anything to try to cool them down?