When I grew in VERY high humidity (HK 80-90% humidity for months on end), I used a dehumidifier in the same room as my tent along with the AC to control it and pumped up my exhaust fan in the tent as well as added more fans inside the tent.
For the dehumidifier, I drilled a hole in the water storage tank, used some 1/4" clear tubing and silicone and routed the line to the bathroom floor drain. Then I never had to empty it out.