2 Plant Help!

So i just picked up two plants about 1 1/2 -2 feet tall. Recently I added nutrients and ph'd regulated water to them and today I noticed that the leaves are sagging a bit and the tips of some leaves are turning yellow and brown (i think because of nutrient burn). I have had them on a drip ring system for about 3 days straight, so i think it could be overwatering.... any help? suggestions???

flush it, fresh water, no nutes, after a week use a 1/4th power nute solution, then after another week of that use a 1/2 power solution. use less than you usualy think unless you have a ppm meter.

im using this hard pebble like fertilizer though so im unsure how to flush it. what do you think about the drooping leaves? and im using a three part nutrient system, flora grow, flora micro and flora bloom...

k i use that nute system too, the hydroton holds water and nutrients the way soil does, but without the dirt. all you would have to do is put clean fresh water through the ring for a week instead of nutes. and is it just in the hydroton or is there a resivior under it?

drooping leaves usualy mean overwatering but that doesnt hapen in hydroton unless its submerged all the time. its probably just the shock from the burn. it should correct itself and perk up after it gets the extra nutes out of the system.

http://www.hydroponics.net/learn/weekly_feeding_program_flora.asp?gallons=5&display=ml&B1=Submit
heres a good table for the HG flora nute system, its hard to measure using the ones on it but all you have to do is convert them to whatever.

under the drip ring is just the hydrotron, no reservoir. Ok, ill flush out the plant for about a week. The amount of nutres i added was inaccurate, i need to get a better measuring tool. Should i limit the amount i add next time because its only two plants in 3 gallons of water?