I am not sure about the nutrients but I would want to know if you have drainage holes in the bottoms of those styro cups. If not, I would say your plants might be drowning.
Bruce

yeah i burned 3 holes into each with a hot screwdriver. I just barely watered them like an hour before i took the picture. I let them dry out a little bit before water but they didnt get dry dry.

I have been fighting a few batches of amphids on the plants on the right tray of plants that are also having the tip problems so someone on thehotpepper suggested that the top leaf problem was a bug problem so that solves that. been using a soap water oil spray but have Azamax on the way.

I just barely watered the plants yesterday and without really thinking i used the same nutrients i use in my hydro setup but i might of got the ratio a just a tad strong so a couple hours ago watered them with plain filtered water (32 ppm) to flush some of the nutes out.

Light is 2, 4ft T8's, temps are 79 degrees as the high, and 75 degrees as the low, the humidity is 39%

The light is about 18 inches away from plants so its far from too close. I also keep a fan blowing on them most of the day.

When i gave them nutes yesterday i fed the lot of plants with 2 quarts of water with 1 tsp each of the General Hydroponics Micro/Grow/Bloom. Which now that im thinking about it they suggest that much per gallon.

Not sure if it helped, but when attempting to flush them with 32 ppm with a 8.0 ph (filtered tap) i collected the run off water and got half as much back out the bottom and it read 280 ppm with a 6.5 ph.

Aphids are mostly on the underside of the leaves so I hope you sprayed the underside also. What type of oil/soap are you using?

Mark