WTF...? please help... no idea whats wrong!

Please someone help! These plants in the earlier stages had some problems with spider mites, but i took care of that and now after checking over and over again with a magnifying glass and just naked eye i cant find any other or anything out of the ordinary. i will take the dead leaves off the plant and literally within the day a whole new set will be yellow and curled. but this type of yellowing is weirder then anything ive seen. the leaves curl up, and get a strange brown color. now the plants seem to not be growing as much and most of the water i give them looks like its coming straight out the bottom... whats going on? please help! thanks!

use tobacco water

tobacco water...? this may seem really stupid but is that just water with tobacco sitting in it for a while? if so how much and how long does it sit for? thanks so much for your help!

may not be the problem, but looks like you need to transplant. roots could be running out of space. Roots growing out of the bottom of your pot will get too much light and begin to die...along with the leaves that the roots are supplying water or nutrients to. I myself dont like white pots as they tend to let light through to the roots. I heard yellowing of the leaves starting from the tips could be due to a nitrogen deficiency... What are your temperature and humidity levels?

I dont know your current root situation or your fertilizing program, these are the first areas I would check.

where the fuck did the plant go? is that from pruning? what happened to all the side branches?
ur plant is hungry for bloom nutes p and k-I see deficiencies for both

I would put then in a new pot and flush then hit it with something like 5-5-5- or 10-10-10, stop remove the leave if you have to cut the dead part off not the whole thing.

LOOK AT THIS http://www.greenmanspage.com/guides/plant_abuse.html AND GO UNDER Nitrogen Deficiencies

Also is the light makeing the steams red or am i seeing thing left side of the pic