leaves turning brown need help

[cadex4x20]

my plant is about a month old and has been doing perfect till recently. all the leaves look healthy except for the botom ones. its growing in only water with a filter and root stimulator, its on constant light, i have (4) 20watt cfls.:rastasmoke:

[tikiroom]

Where are the roots supposed to go?? :wtf:

[cadex4x20]

its in a big ass tank the roots just flow

[canniwhatsis]

Ummmmm,........




Roots need air to survive. Cuttings will last for some time in a cup of water,.... kept one about 3 weeks like that before the cup ran dry and it wilted.

What I'm seeing there looks like a half cocked DWC method and probably isn't gonna work at all, but I might be wrong. (probably am since I'm not a Hydro guy)

I guess if theres a hell of a lot of aeration that I'm not seeing in the pics it might be viable. :wtf:



Leaf damage looks like multiple problems,... Fill out the Hydro trouble shooting form and get back to us ;)

http://boards.cannabis.com/plant-problems/173775-cancom-copy-n-paste-troubleshooting-forms.html

[cadex4x20]

Your Equipment:

.1) Type and wattage of lights. (MH, HPS, CFL's, tube fluorescents, LED's)
(4) 20 WATT CFLS

.2) Distance from tops?
ABOUT AN INCH OR TWO

.3) Reflector type? (cool tube set-up, bat wing, enclosed reflector, bare bulb...)
BULB

.4) Is there a consistent fresh air supply?
YES

.5) Do you have an exhaust fan and a circulation fan?
NO

.6) What are the bulb wattages, kelvin ratings, and schedule?
(4) 20 WATT CONSTANT

Your medium:

.7) Specific brand and type of soil, (coco, peat based soilless...) and anything you've added to it. (vermiculite, perlite, worm castings...)
NO SOIL

.8) Size of container.
20 GALLON TANK

.9) Did you use peat pucks (or similar) to root clones or germinate seedlings?
GERMINATE

Your nutrients and water:

10) Source of water? (tap, bottled or filtered) What's it's ph before adjusting?
TAP

11) Method of checking water ph. (ph pen, test strips, aquarium test kit...)
STRIPS

12) Method of adjusting water ph. (phosphoric acid, white vinegar, hydrated lime, PH Up...)
NEVER NEEDED TOO

13) Specific brand and N-P-K ratio for each bottle. List dosages (quantity per gallon) and current feeding schedule.
...IDK

14) How often are you watering between feedings, and how much per watering?
IT'S ONLY IN WATER

15) Any additives or tea's? (Superthrive, CalMag, molasses, Mother's Earth...)
ROOT SIMULATOR

16) Are your ph levels stable, or do they fluctuate?
STAY CLOSE TO THE SAME

17) What is your ingoing water's ph? ...your runoff ph?
7 NO RUNOFF

18) Do you foliar feed? If so, with what, how often, and at what time do you spray?
NO

Your growroom:

19) Indoors or outdoors?
IN

20) What size of closet, room or hut?
5' BY 5'

21) What are the temps and humidity levels while lights are on? ...With lights off?
78 ALWAYS ON

22) Have you seen signs of insects in the growroom?
YES LITTLE SPIDERS AND A WASP DIED IN THE WATER

Your strain:

23) What strain are you growing? (Indica dominate or Sativa dom?)
IDK

24) From seeds or clones?
SEEDS

25) Is this an autoflower strain?
IDK