I got the coco for free, lol. I thought coco seems that way because of the available oxygen to the roots. I figured since the bennies and myco have somewhere to work, unlike in an actual hydro setup, then it should work out. I actually wanted to do a hydro organic grow, but it doesn't seem possible. Can someone clear this up?
Just because you got something for free, doesn't mean you should compromise the integrity of your grow to use it, lol. Stash it and save it, more than likely you'll use it later. Organics and Coco weren't really compatible as far as I have researched. I tried using the BioCanna nutrient line in Coco and had so many problems that I had to retransplant into organic soil. The Nutrients weren't made to interact and feed in Coco. Something about Cation Capacity (CEC.) I had a few convo's with Canna about this problem.
If you are looking to do a hydro organic setup, there are many nutrient lines that would work well for you. First I would use a soilless medium. I use Pro-Mix. And they are making an OMRI listed Pro-Mix now which is very nice. There are others, such as Sunshine Advanced, But in my experience Pro-Mix has the best water retention without the compaction problems that I had in Organic Soils and Sunshine. A few nutrient lines I would suggest are Botanicare Pureblend, BioCanna, and the General Organics line. I have piecemealed a program together using certain products from all of these and a High Phosphorous Guano blend. I took what I liked and mix what I need based on what the plant is showing me it needs. I top feed mine a couple times a week.
If you are trying to do hydro in the sense of mixing a barrrel of nutrients and having automated feedings, hydro organics would be much more difficult. Organic nutrients tend to be made of more unrefined nutrients which are heavier. Whereas hydro nutrients are highly refined chemicals and actually leave behind little residue and there are other chemicals which help clean out the system as it feeds which you can just mix into your nutrient regimen. Hydro is much cleaner. Organics and Soil is very messy. It requires much more clean up, but pays itself in the quality.
Organic nutrients leave residues behind which can build up, clog drip lines, and create an unclean environment which could promote mold and other unhealthy things. BUT!!!!! It would not be impossible. I would think you would want to have a second system clean and ready to switch out completely to tear down and clean on a res change. SO it isn't impossible, but it is a little impractical due to having to buy a second system, the amount of work it created in the cleaning of the system not in use every week, and then if you chose to do it on one system, you would have to tear down and reassemble each week.
I hope this shed some light on what you were thinking. If not, give a few more details on how you are wanting to grow.