Like you discovered for yourself and many others have said, organics can be done in coco but I would not recommend it. Way easier to mess up and you'll get better quality and yields with regular nutrients. The canna coco line is the best I've ever tried, by far really but there are several others that will work just fine.
And you can switch now if you'd like, even though you've been going organic you can switch to coco-geared nutes. Just make sure you pH it and feed until you get a lot of drainage the first time. After that feed until it starts running out fairly well, no need to drain a third of your container size like some claim...just make sure its very well saturated and starts dripping rapidly from the bottom then stop.
Also several will disagree with me for some reason but they're wrong...there is no need to add perlite to your coco. You're just wasting the perlite and robbing the roots of space to grow. Coco is the best soil-like medium for root oxygenization, there's absolutely no need to add perlite to give them more.