float frozen bottles of water in the tank, bags of ice and or leave top open with a fan blowing on top of water.
Pretty hard to keep the temperature stable that way.
My advice would be to get an AC.
float frozen bottles of water in the tank, bags of ice and or leave top open with a fan blowing on top of water.
it gets to over 90º all of the time and sometimes over 100º here. plus, the humidity is constantly in the 80's, which makes it feel like its 120º