Nice it looks like you got 4 hurricane clip on fans? Do you have any under the plants?
None under. The 4 get the job done. With the doors closed you can see them dancing around pretty good in there. I honestly wouldn't want anymore on them.
Saved my cash and went with the Genesis fans.
I have a Hurricane. You can tell it may be made a wee bit better, but not enough to almost double the price for me.
Air movement is basically the same from both brands using bro science

(back of hand)
Edit... can get 4 of the Genesis for about $50 on Amazon btw.