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My 1st DWC grow

kentboy1296

Active Member
Hello, im in need of some help. I just started my 1st dwc grow, im growing super silver haze (fem) and white widow (fem) i am currently in week 2 and am using GH flora series trio. My resivor solution is at 200ppm of calmag 2mls of silica approx 1ml GMB 3mls hydrogaurd 1.5mls of superthrive= 315 - 320 ppm phd at 5.7 but my plants are looking strange, anyone know what it is and how to fix?
 

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Ganjagrandaddy

Well-Known Member
Stop the feeds before you kill them. Seedlings this young dont need anything besides ph,d 5.8 water. they cant feed yet and you will lock them out with overfeeding. They wont need any feeding until those little rounded leaves that first opened (Cotyledons) are starting to be consumed by her. They will yellow off then start curling.These are designed to be her very first meal from her seed birth. you could also use the 4th actual proper leaf set as a feeding guide too. They are so young nkw and cannot use the force fed nutes and could lock out and die off. Empty the res and replace with just ph,ed water until her roots can take feeds.
Also with a " hot mix" you could burn the the delicate tiny forming roots before they ha e time to grow properly. this will affect yield badly too.
Start a journal on here and i can help as you go if you like. also gives opportunities for others to offer support too. Easy to do if you follow the guides. have a link for new members at bottom of this post in green. click on "Helpful links for new members" and it will show you the way to get the best out of 420 and its members too. Welcome mate , hope the advice is clear
 

Ganjagrandaddy

Well-Known Member
my.thoughts too but assumed it meant ppm was 200 with nutes. 1tsp per gallon of calmag once in real veg until flowering is the norm with the gh sched.
 

kentboy1296

Active Member
Stop the feeds before you kill them. Seedlings this young dont need anything besides ph,d 5.8 water. they cant feed yet and you will lock them out with overfeeding. They wont need any feeding until those little rounded leaves that first opened (Cotyledons) are starting to be consumed by her. They will yellow off then start curling.These are designed to be her very first meal from her seed birth. you could also use the 4th actual proper leaf set as a feeding guide too. They are so young nkw and cannot use the force fed nutes and could lock out and die off. Empty the res and replace with just ph,ed water until her roots can take feeds.
Also with a " hot mix" you could burn the the delicate tiny forming roots before they ha e time to grow properly. this will affect yield badly too.
Start a journal on here and i can help as you go if you like. also gives opportunities for others to offer support too. Easy to do if you follow the guides. have a link for new members at bottom of this post in green. click on "Helpful links for new members" and it will show you the way to get the best out of 420 and its members too. Welcome mate , hope the advice is clear
Thanks for the info. I forgot to mention im using ro water, should i use calmag with that?
 

Dro

Well-Known Member
Thanks for the info. I forgot to mention im using ro water, should i use calmag with that?
Listen to @Ganjagrandaddy and @Rifleman, they are great growers.

At this stage of the growth you don't need calmag or other nutes. Just pHd your RO water to 5.8, keep water temps below 70 and change water every week.
 

Barney86

Well-Known Member
Why did you go so heavy on the cal-mag? I normally don't even need it until flowering.
I currently having a wee experiment to see how little calmag I can use. Got 3 plants in coco, 5-7 ouncers so a fair size and I didn't need any untill bloom iether. Bout 7 weeks into bloom now and they've still only had about 10 doses at 1ml per litre. See people going mad with it all the time. Not sure where the myth comes from but yeah, certainly not something you need a lot of. Not in hydro anyway.
 

Ganjagrandaddy

Well-Known Member
Listen to @Ganjagrandaddy and @Rifleman, they are great growers.

At this stage of the growth you don't need calmag or other nutes. Just pHd your RO water to 5.8, keep water temps below 70 and change water every week.
thank you dro , a very kind statement bud. :48:
I think it is an easy error for most converts like us. To think a plant can survive with just pure water when we have been trained for our whole lives around soil/sun/seed , the thought of our newly emerged seedling only getting a drink seems crazy so we logically feed them.!!!! It was only finding out about the Cotyledon leaves that saved my previous grow tbh. And the support of some great rdwc growers on here too. My conversion from decades of other mediums ,including hydro !! , was a very steep learning curve with a near lost crop. lol.Love being able to help avoid calamities that can kill any new ( and exp) growers ambition to continue sometimes. Beans cost money as do nutes , lights ect.. so is a killer to see it all fail for such simple errors sometimes. Good luck fellow farmers , keep up the great hobbying , post that bud porn and get in those competitions and forums. peace and love
 

Rifleman

Member of the Month: Mar 2016 - Plant of the Month: Nov 2015
FWIW what you were trying isn't entirely wrong or bad. Just overkill. I start my seeds in paper towels and as soon as they pop a tap root I place them in rooting cubes and bury them in my netpots. Then right on top of my DWC buckets with 4 gallons water and 15ml each of AN pH Perfect m,g,b.

My tap water is around 115ppm, and the mix ends up about 500ppm, so 385ppm of added nutrients. And this is before any leaves sprout. I leave them in the mixture for 18-21 days before doing a water change. Check out The Roost in my signature, I have a detailed DWC the lazy way, for inattentive potheads tutorial that began around post 2559 IIRC.
 
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