I live in South Africa, which is incredibly hot in summer (even in winter). Often the temperature is over 32 degrees and of course that makes the tank water hot as well. My question is simply: Are warmer climate aquarist doomed to fail based on these high temperatures? For example, I can't get my water lower than 26 even with aircon going the entire day (set to 17). My reason for asking this is I simply don't understand why my plants don't grow. I have tried everything to get them to grow and have bought really expensive equipment in the process. An yes, I have posting on this forum about ferts and co2, which are all at the req levels (DC is green when lights on, pH is right etc etc etc.). Tried many ferts as well with 3 week gaps in between to give it time to "work". Even paid for consultations on this issue and every time I was told that all my problems is temp related. I just don't believe it to be honest. After all these plants and fish are from hotter and more humid parts of the world. Any thoughts?