Nutrient Schedules for RDWC systems.

JOHNNYREY

Active Member
Hey guys/girls well the titles speaks for it self mainly.
I know I'll be receiving "use the search feature" feedbacks but please do understand, when you search there are a lot of old posts and a lot of posts that do not really specify whether its good for rdwc or if its for soil or not and they keep the feedbacks vague. Also, when searching this question a lot of old posts don't really get any add-ons and we are in 2015 so I was hoping to get some feedback FROM now and not from the PAST. And then there are just posts that have nutrient calculators or brochures of what you should do, and I'm not really interested in the "typical" reading the nutrient schedule on the website or what the bottle of nutrients say. So after explaining myself, I am wondering what your nutrient schedules might be for RDWC, I would love input from new growers and experienced growers as well. I use AN right now and honestly I am not proud of my results I go by their beginner growers schedule on their website and I'm pulling less than .5g per watt and I'm sure most of you will be surprised hearing that number and I find that number to be horrible so please try to be helpful with anything that you possibly can.
I do have a water chiller, water is at 65 degrees.
Air pumps and everything is set up for an RDWC I've read so much that I'm sure I have the setup's correct, its the nutrients and I am 99% sure.
Fans on
temps 77-82 daylight w/ CO2 ppm's at 1100 throughout.
 

Carolina Dream'n

Well-Known Member
Ionic bloom from start to finish. You can use their pk boost if you so choose so.

Advanced has too much organic matter in it for RDWC. Stick to simply salts, and only salts.
 

weedemart

Well-Known Member
nutri+ bloom or optimum hydroponix bloom(the exact same nutrients but under different name), sold in 2 parts 50$ for gallons. It fit well with soft water. very economical .05$/gal on average.

An expensive alternative would be canna aqua if you have hard water and dont want to invest in ro system.
 

JOHNNYREY

Active Member
Ionic bloom from start to finish. You can use their pk boost if you so choose so.

Advanced has too much organic matter in it for RDWC. Stick to simply salts, and only salts.
Thank you for the fast reply. Do you use their pk boost? Any additives that you use? Is there a site where I can get a nutrient calendar?
 

JOHNNYREY

Active Member
nutri+ bloom or optimum hydroponix bloom(the exact same nutrients but under different name), sold in 2 parts 50$ for gallons. It fit well with soft water. very economical .05$/gal on average.

An expensive alternative would be canna aqua if you have hard water and dont want to invest in ro system.
Honestly I do not care about cheap AN is expensive as shit and talked down upon on ROLLITUP all I mainly want to do is be at that .5g per watt or above margin.
 

Carolina Dream'n

Well-Known Member
Thank you for the fast reply. Do you use their pk boost? Any additives that you use? Is there a site where I can get a nutrient calendar?
For dwc I don't use any additives. I use one called Ersa Elixir in flood and drain and drain to waste. I have used it with DWC with excellent results, minus having to clean the buckets every 2 weeks. It's to be used from week 2-6 or the start of your ripener (pk boosts) whichever comes first.

Ionic is a one part, so the feeding schedule is simple. I don't follow one and just read my plants and give them the EC I feel appropriate at that time. But as a reference I'd say 10-15 ml per gallon.

The pk boost is still up in the air for me. I haven't finished my research with it yet. But when I do use it it's at 4ml per gallon after week 4 or 5 until harvest or flush, depending on your style.
 
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