More problems need LOTS OF HELP PLEASEE!!!!

i went away to dc for a few days with a couple of my boys and my girl was suposed to check the plants and never did...i came back to the worst shit possible

my plant that was doind the best was completly shriveled and dead....others were starting to shrivel

i think its bcuz they didnt get much water...the bottom of the roots had plenty but it was also hot in the enclosure i have them in since the fan deosnt help that much

tell me what i can do to get them alive and well again PLEASEEE

water air..an a temp round 75..peace az

Can we get better pictures? Those are too big and not detailed enough, somebody told me that can be due to nitrogen deficiancy.

these are the best pics i can come up with...iphone cam isnt that good =/

i started them jan 23 so there 1 1/2 months about there is a fan and the temp isnt that hot probly mid 70s ish and they have been watered but its also hydro so there is enough water all the time now that im home and one plant just got a lil worse =/

wot is your vitals ppm, ph, nutes wot is the dose u feed? and wot nutes are you using?