I also went through lots of cloudy tank water during previous tank startups too... until i watched how the pros setup their tanks, then just followed their techniques.
Rescaping and replanting does kick up some dust from the substrate, but i've found that if the uprooting and planting activities are done slowly while the filter is switched off and the dust is allowed time to settle, there'll usually be no issue with cloudiness.
My tanks temperatures usually average around 28-29°C nowadays... but these few days with the warmer dry weather, they can sometimes creep up close to 30°C at their peak during particularly hot afternoons.
So far the flora and fauna that i keep are all still okay at those temperatures, so i haven't found a need to use fans or chillers yet.
Btw i'm using relatively lower powered LED lights which generate much less heat compared to T5 lights. If you are using T5 lights, the tank temperature might get abit higher so it could be a good idea to consider using a fan to reduce the heat build up under those type of lights.
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