Can any one save my lowriders?

Potmaniac · #1 (**permalink**) 11-13-2006, 08:40 PM

Hi. I have some big troubles with my first hydro setup. At first I simply couldn't control my ph because lack of the test. It was corected last friday, set on 5.5-5.7 and is being kept this way. As nutes I used 1/2 solution of canna terra flores bloom (something like 8-9-19) and 10 mil of ionic grow for about 15 l of water. As you can see these are just babies (two weeks ago they were seeds).
Yellowing occured b4 I got ph test, but since yesterday some of the leaves started drying on the ends. What the f...k am I doing wrong.

Some more info.
medium-rockwool
light- 400 hps
Water temp - 'hand worm'
feeding- 4x a day (every 6h for 15 min)
light dist. from plant tops about 2 feet.
treateg gently with oscilating fan every day for some time.
ph stabilised by phosphoric acid (about 15 droops for 15l of water wich was about 6.6), water taken from taps, and left for two days to breathe.

bluebong · #2 (**permalink**) 11-13-2006, 09:13 PM

Did you pre-soak your rockwool to condition it? That stuff is very alkaline, and has strong buffering capacity. It's probably turning the pH of your solution way up on contact. If this is the case, those plants are done for.

Did you test the pH of the actual rockwool? Press a litmus strip against it when it's a little moist, that'll give you an idea.

In my opinion, rockwool sucks for many reasons. But some people like it.

Potmaniac · #3 (**permalink**) 11-13-2006, 10:13 PM

Well.no i didn't.aldough they sit in it for a week now. I just changed water, and put full sollution of ionic grow and took ph to 5.7 (going to check in a bit, as it's still settling). It's 3 change of the water in a week, so maybe i managed to wash it trough?

Potmaniac · #4 (**permalink**) 11-13-2006, 10:15 PM

On a good side they still seem to grow with strugle.
Any more tips?
I can try to put some more photos if it helps.

DCrist721 · #5 (**permalink**) 11-13-2006, 10:21 PM

They might need magnesium. Heres a helpful thread posted by Spanishfly: http://forum.grasscity.com/absolute-...ml#post1041261

Potmaniac · #6 (**permalink**) 11-13-2006, 10:49 PM

Another advice to take on. Is it some kind of stuff u get at chemists, as I understand bath purpose?
Sometimes u think that next step will be do dissolve some cocacola in water. Thanks.I will try and let know what's up.

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#2 (permalink) 11-13-2006, 09:13 PM
bluebong Look, a fat little goat!! Join Date: Oct 2006 Location: In the shitty Mojave. Posts: 212	Did you pre-soak your rockwool to condition it? That stuff is very alkaline, and has strong buffering capacity. It's probably turning the pH of your solution way up on contact. If this is the case, those plants are done for. Did you test the pH of the actual rockwool? Press a litmus strip against it when it's a little moist, that'll give you an idea. In my opinion, rockwool sucks for many reasons. But some people like it.

#3 (permalink) 11-13-2006, 10:13 PM
Potmaniac Honey.I can fly! Join Date: Nov 2006 Location: My own green planet. Posts: 263	Well.no i didn't.aldough they sit in it for a week now. I just changed water, and put full sollution of ionic grow and took ph to 5.7 (going to check in a bit, as it's still settling). It's 3 change of the water in a week, so maybe i managed to wash it trough?

#4 (permalink) 11-13-2006, 10:15 PM
Potmaniac Honey.I can fly! Join Date: Nov 2006 Location: My own green planet. Posts: 263	On a good side they still seem to grow with strugle. Any more tips? I can try to put some more photos if it helps.

#5 (permalink) 11-13-2006, 10:21 PM
DCrist721 Banned Join Date: May 2006 Location: Long Island, NY Posts: 1,280	They might need magnesium. Heres a helpful thread posted by Spanishfly: http://forum.grasscity.com/absolute-...ml#post1041261 Last edited by DCrist721; 11-13-2006 at 10:30 PM.

#6 (permalink) 11-13-2006, 10:49 PM
Potmaniac Honey.I can fly! Join Date: Nov 2006 Location: My own green planet. Posts: 263	Another advice to take on. Is it some kind of stuff u get at chemists, as I understand bath purpose? Sometimes u think that next step will be do dissolve some cocacola in water. Thanks.I will try and let know what's up.

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