Trying to Perfect a small Hydro Grow room..any help

Here is the set up

400W HPS
4in Mountain Air with 6in 433CFM fan running at about 70%
Set up as follows--Carbon Filter>>4 to 6in converter>>6in duct hose>>Light tube>>6in duct hose>>6in exhaust fan
2 - 5in Vinyl Tube about 32in long with 4 sites about 6in apart (8 total sites)
Tent is a 20 by 40 by 60
Net pots have nothing in them, just roots with a 3 in black polyurthene tops to hold the plants in place (I usually use clay stones but my former partner choose not to) Roots are white though
5 gallon res, using House and Garden nutes, adding in some super thrive and earth candy following normal guidelines not agressive
I use a 633 pump to mist the plants that have the red little sprayers, 3 in each vinyl tube (one for 1 min every 30 mins)
I have a fogger that I use with 10% of the nutes and blow in fog 0.5 microns for 1 min every 20 mins
Water temp is 68F and there is a water chiller keeping that stable
I have a 7in fan internal that is not ociallating but blows 24 on the canopy
Humidity is low 40-50% but usually around 40, I mist them daily to keep that up
Temp bottom of canopy is 74F and the top fluctuates between 78-82, I keep the exhaust going to keep this down but its a big light for a small room
I also use Co2 Pads, I dont think they work well bc I have the exhaust going so im just sucking it all back out

I have had a few other set ups but this one was passed on to me bc the other space was no longer avail and it needed to be a small and stealth as possible.

I seem to be getting good results as the picture I will attach is White widowxbigbud, however I inherited this set up at about 3 weeks in, the plants were trimmed/lst/topped so they are very stunted but the colas seem to be filling out, I also need to lower the table so I have more room to grow the next round

SO...Who has ideas to make this better..Im sure its not perfect yet and there may be some simple add ons or changes that can take this up a notch. thank you in advance for any advice

seriously, 240 views and no replies, does that mean its a perfect set up

Well, the lack of responces may be due to the fact you already have flowering plants and no issues that you speak of.

I really do not think there is such a thing as a "perfect" setup, as we are all continually learning new methods of operation.

Personally, I think your setup looks damn good, looks like you are maximizing the space within the tent and the plants look very nice, so kudos to you on your efforts.

Look forward to some bud porn in the near future.

Peace and Great Grows

Asmallvoice

thanks for the repsonse i guess im trying to do better with what i have while my roots are white and i have had literally no problems there is one issue that i am trying to fix and that is that my buds are not dense at all i think they should have been lollipopped and then more energy would have went to the top in stead of the little bs flowers t the bottom lookinig to mkae some correction in round 2 just popped two seeds 1 afghan kush and 1 bigbudxwhote widow that im going to have a short mother period to get 4 clones each then we will see what happens

any tips of getting the nugs fat and dense