Set up issue

Thanks for looking. I have attached a video of my grow room. 4 plants and as you can see there’s no room on the ground for heater or fan... so! I have placed one directly above and used a fan speed controller to lower the speed to just a gentle breeze... recon that’s ok??

also I have another few fans about and my exhaust is good I’m pulling out air and negative pressure is good.

BUT( this was before I put the fan above)
My humidity’s like 70/75 %?!?

is that because growing in coco the pots are moist and I have the fabric pots suspended about the drip tray so they don’t sit in the runoff I don’t Waite around and empty this every day like I used to it became to time consuming so I just leave it and do it once every few days.. will this be causing the high humidity?

also I have no space for a heater anymore,
I put a tubular heater in there but it just doesn’t do enough at night. Temp goes as low as 15/16c ... any ideas of how to get over this, I can’t hear the room outside I’m in my loft ...

Any help much appreciated thanks

your humidity is way too high. you need to get it down to about 60% can you use a dehumidifier or something? 16c at night is fine as long as your temps are about 26c in the day. you want to try and get another fan in there if you can? and yes you need to empty those drip trays it's causing too much humidity in your room bro

I’m growing autos lights are on during most of the night. There on 20/4. I can’t fit a fan lower down anything from the top of the plants down in a no go zone the fans will ever be blowing at the pots drying them out or directly blowing the plants to hard... it’s a shit situation unfortunately. I will empty the drip trays every feed and see if that’s works as for the temperature I’m fucked I think then,
thanks for the advice though mate