Tomato Tub with air and pump

I'm thinking of searching for a small, oscillating fan for my 24 farm xl. Everything I have grown so far seems so "very tender". Even the lettuce isn't as "strong nor crispy" as I think lettuce should be. Do you think the fan makes stronger plants? It seems to me that it would. When I took an entire tray of tomatoe plants outside to harden, they got much more "tough looking" - thicker leaves.

I am still having issues with edema and it is moving up to higher branches.. After more searching for answers I am making more changes.. breaking the cardinal rule of trouble shooting by changing more than one thing at a time.. 
Things that cause edema in tomato plants: Nutrient/ph imbalance, high humidity lack of air movement (transpiration), roots too hot compered to plant(plant thinks it is raining so drinks a lot more water than needed), not enough UV and blue light and too much water in root zone.

I have 2 small fans running on low, so maybe need more air.. 
My ec levels were still on the low side  as this was my first mix of the new nutrient and I used level tsp's of food.  ec down to 2.06 form a start of 2.30 2 days ago and should have been 2.50 which includes source water making the mix 2.0, which was what I was shooting for.  
Water temp at night is over 75 by end of day and room air drops once lights are off  to 71.   

Yesterday I added a UV (65w black light used at Halloween) This  morning I added more of the 3 nutrients in the proper ratio and got he ec up to 2.43  with a ph of 6.24 (shooting for 6.2) and I also remove the pump from the spay nozzle.  The pump now just send that water from one end to the other in a circular motion.   I also added a timer to the pump so it will run for 30 minutes every 2 hours to try and lower water temp.  I have a hard time believing the pump make much heat but the internet claims it does.. will see.

So if I still have issues, I guess I will try a frozen bottle of water in the tub before bed.. after that I am out of ideas..  Same plant in same food, with water spray, outside is thriving with no sign of edema so maybe more fan speed is in order..

I have used  H202  to prevent algae and adding a bit too much 2 tsps per gallon wilted the plant for 24 hours (both times I added too much). Edema is not lack of Oxygen, it is the plant pulling more water than it can transpire to the air.  The water swells the cells and they rupture.  It is not normally fatal and my plants I grow for soil have always gotten it after maturing in pots, in side..  Once moved outside (still in the pots) it clears up.  It may just be the lack of proper air movement, a fan is  not the same as outside, and man made light is not the same as sun.. The other statement I read was some verities are more subjectable than others..  I only ever grow this same verity anymore.  So the trick is to figure out if there is a reason the plant is now sucking more water than it did earlier in it's life or if the fan is just not moving enough air now the plant is larger.  Being I changed every variable today, will be hard to tell what fixed it, if it stops happening.. 

 

Well I took one more step this evening.. When I took my readings and added water, I added it as ice.. Dropped the water temp from 77 to 68 and so far so good, will check at 11 after the lights have been off for an hour or 2 and air temp is down to 71..  That is when I saw the new blisters last night.   The first tomato that is on the plant is growing nicely already 1/2" in diameter.  I am way behind this year, normally when I set them out in the ground they have 1" tomatoes on them, but they are just getting flowers now..  I won't remove the first flower as directed by one green house sites blog.. I like my midd/end of June first taste.. will be July 4th or later I think.. 

No, I said that the amount of 2tsp (10lm) per gallon "Wilted" the plant "for 24 hours", after that it was fine.. I don't want to stock the plants and wilt them for no reason.   And yes it all depends on the circumstance. And yes, we learn what works for us as we experiment.  My grand father always pruned his tomato's but he grew big boys in sandy soil and I don't think fed the properly.. fishguts  and MG.. he was going for a few big tomatoes and his stems as I remember them were always thin compared to what mine look like.   Maybe it was that particular year when I was helping him tie the to the trellis.   I let my early 4th of julys go wild after they reach 4' and reap a huge bounty of smaller than they could be fruit, but that is what the wife likes! 

As of this morning no new edema blisters that I could find.  I have also found the missing ingredient of the formula I am using,  Potassium Nitrate.  It calls for 1/10 tsp per gallon once you have 4 flower clusters and when I bought the other ingredients I did not buy it as they don't sell it in that I could see.  After some searching I found it at a seller that uses walmart as their front end and ordered 1/2 lb.  Later on that day I found out that Spectricide Stump remover is 100% Potassium nitrate used to feed fungus so they eat the stump..  Added that today to both plants, EC and PH is on the money where it should be, even watered this inside plant with full strength solution left from the outside plant first fill.   
 
As a child I did not like gardening much, but I guess I must have leaned something..
Me at about 9 or 10 maybe, with Pop-Pop in the garden, Villas NJ 

No, we are from Delaware County PA just east of Philadelphia..  They retired to the Villas.. as did my wife's grandparents... 
And yes, the white wife beater under shirts (as they are now known as in some circles) were popular.. guess it was lack of AC and big arms.. .Yep Nan always had a shift on in the summer.   No AC, so you had to get as naked as you could!

Oops! Bad mod. Just was trying to help you find it since you said you couldn't.