ok were you spraying the rockwool with regular distilled water or were you phing the water then putting it into the sprayer. So im gonna use 20 gallons i have ph down once i throw the water in the res do you think i will need to ph down the water distilled water is at 6.0. Then heat to around 72 right?

Below are the pics of my res its a 35 gallon res im wondering how much water i should put in the tray is 4 inches deep > i have a heater and 2 4inch air stones and the ph down

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forgot to tell you guys i got the seeds from amsterdam seeds they came 3 weeks to us heres how they come


IF ANYONE CAN ANSWER THOSE QUESTIONS I HAD ABOUT TO RES WHAT WOULD BE COOL IM SETTING UP THE RES TONIGHT

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ok i just filled my res with 12 gal of water tested the ph and its readin a 6 i guess because i bought distilled water do you think i need to lower it how much?

ok, here's some information for you.

You can start nutes as soon as you put the seeds in rockwool. I tested this and survived up to 500ppm to start with, i use 200 for saftey.

Im going to say start at 400ppm in your res, test how much of your nutes adds how much ppm to that 20 gals, and even them out.

I figure some advice is better than none. i have not successfully completed a hydro grow, but these ppms have not killed my plants with fox farm nutes.

those ml's to the gallon cant be answered, you need to check your nute levels via PPM, not how much you add.

ok i filled the res and gave it a test run and the tray filled up and the rockwool was like almost floating should i put more rocks in it how far should the water come up the rockwool?>


and thanks for the advice on the nutes man

I had my rockwool cubes in a growing tray for about 2 weeks before I put them in my hydro setup. Here is what I did:

I put 1/2 gallon of water in a bowl, and mixed in 1/4 tsp of the GH Micro, grow, and bloom... Usually the Nutes balanced the PH, and I didn't have to adjust. Then I dipped the cubes in the water when they dried out, and had them under 24 hrs of 400W MH light. Don't soak them! I didn't have the light close enough and one stretched. But I have 3 good looking plants now, so it seemed to work for me.

I'm on my first grow, so I am no expert, but that is what I did to start if that helps... Here is how they look now: My First Grow... Crystal

The rockwool should be burried in the hydroton. not on top.. if its burried.. it should not float... did you set them on top of the hydroton?

yes i know it is buried but when my tray floods they are soaked with water i have 12 gallons in the res, should i just take some water out? ill take some pics and show you what i mean

below are the rockwool now when i flood the system itt gets realy soaked i mean it doesnt float but it looks like its about too

do you think i should drain some water from the res how much of the rockwool should be under water?

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a flood and drain system is meant to "flood"... and then drain off... make sure your table is not overflowing, and you will be okay.. your rockwool should be completely burried.. all you should see is a plant comming out of a hydroton, for best results. IMHO...


this is how most of us do it.

so its cool if the rockwool gets soaked i guess it will dry out real quick anyway im gonna flood 3 times a day for about 15 min you think that is ok?
and my seeds havent popped through yet how long should i wait to put them under lights thanks guys