Nutrient Burn RDWC

Kdoggy

Well-Known Member
OK I do check the PPM daily, but learning to go half the recommended strength is new info. How high a risk are deficiencies at half strength? My RDWC usually doesnt need topped off during the week so if I see it go down by 20 ppm per day is that ok until the next nute change? (every 7 days)
I dunno i dont ever have issues running half, if ph starts dropping i know plants used up nutes i do res change or a top up of 1/3 nute mix ph’d back to 6.2 if im lazy. Honestly thats as easy as that. I dont use ec or ppm my ph dropping tells me all i need to know as the ph down no longer has the calcium carbonates to hold the ph up so it begins to drop ph takes two days from when i notice ph going down to be ready for nute change. I run a pretty simple set up but im also running 3 rooms plus vegetable room so i dont like the growing to consume me i want it to be enjoyable thats why ive just analyzed what happens when nute mix gets low ph is all a guy needs and tbh the guy who taught me doesnt even adjust his ph so he laughs at me for even bothering with ph but i like it to make sure my plants have all they need and i like the perfection side of not using much tech but having great plants.
 

Gambit79

Member
if it goes down 20 per day, that's about perfect. i like to see the EC/ppm dropping daily: it shows they are eating.
Thanks again mate ^^ I have now learned to not trust GH feed charts for squat. So does this sound right to you for late veg (8 weeks) 5 ml per gallon Micro 5 ml per gallon Grow, and 2.5 ml per gallon Bloom? Funny enough this is the dose they recommend when using all the additives (twice that without them) Would be an even 4ml per gallon in transition? Why would they make these doses so high? Seems like they are going out of their way for new growers to burn their crops.
 

race winslow

Well-Known Member
Right on Thanks! I will do just that. Do you think it is ok to keep the floralicious plus with the trio and cal mag? Can sugar burn the plan? I honestly care more about taste than yield.
I'm really late to this party.
My two cents......
I started a 4 bucket 13 gal each RDWC system about 8 weeks ago. I'm using Cultured Solutions nutrients. I'm loving this stuff. It's very forgiving in terms of overfeeding. The PH is rock solid too. I'm not using any enzymes or amendments. No slime on the roots or tubing. They are almost bright white. I haven't changed the water either. The plants are not complaining so I'm going to wait in changing until it's time to flush.
There are 4 different strains in this photo. All have different finishing times. So, a couple are starting to yellow as they get close to harvest. This is at day 63.PXL_20210204_232144947.jpg
 
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