A cocos substrate like Canna Coco Professional Plus is lighter than soil causing the plant to develop a better rootsystem. Because Coco doesn't buffer it's easy to fix any mistakes made. If for example the wrong kind or too much of nutrition you can use acidulated water to recover it. Specially developed for growing with cocos Canna cocos products developed some products: Canna Coco and Canna Cogr.
Also as beginning grower you can reach good results with these Canna cocos products. The grow and bloom nutrition is combined in Canna Coco A & B. You just have to add additives like Rhizotonic and Cannaboost Accelerator to get good results. Canna Coco A & B contains the right nutrients for both vegetables and quick growing plants. To reach an even better final result you can also use Canna Cogr with the right knowledge about this product.