Any suggestions on bettering my setup

4x8 tent but only using half so I can start a some what perpetual harvest. Currently using 2 315w cmh in that area. I just ordered a third one this morning.. 6 in fan/filter that works alright. Installed a/c in bedroom for cooling purposes. I use one wall mount fan . Probably should look into another. How many fans does everyone run? Planning on running 3 cmh in line across the 4x8. Babies go in every 4wks. Any opinions on bettering my setup?

Maximize your canopy dude. Train and prune your plant, so much wasted space i see in those pictures. Especially running two CMH you're not maximizing your potential.

Adding another bulb will raise temps, make sure you're capable of keeping temps in check with the ventilation setup you have. As long as you have good airflow in the tent you don't need more fans. I run a single fan in each side of my tent. (4x8 split in half)

How do you plan to use the full tent? split into veg & flower or full flower with 3 CMH? With 3 lights perpetual will be very easy, but keep in mind different strains finish at different times. Keep notes of your grow, makes life simpler with perpetual.