It could be anything with the mix and nutes your using. Red stems, drooping, yellowing slow growth etc The cheap coco is the main issue here bro.
Next grow use this stuff and you wont go wrong, no ph testing and great results with almost no issues, great for beginners.
About Terra
High yields
There's a reason experts through-out the world use CANNA Terra for cultivation. Many see this as one of the more natural cultivation methods. All CANNA TERRA products are designed to work with each other to create the best possible results.
For in- and outdoor cultivation
The CANNA Terra range has been developed for cultivation both indoors and outdoors. For optimum results CANNA Terra nutrients should be used in combination with CANNA Terra Professional Plus medium.
Quality proves itself
CANNA Terra was developed for cultivation in soil. CANNA Terra remains unequalled due to its revolutionary one-part Terra formula and the high standards that CANNA sets during production.
The natural method of cultivation
CANNA’s fertilizers have a bio-topical effect. They are absorbed by the plant’s systems in a natural way. CANNA Terra ensures that there is an optimum balance in the plant cells, and also increases resistance. Opposed to many other fertilizers, CANNA Terra products are absorbed quickly. This high degree of absorbability means that the plant only has to devote a small amount of energy to this process, which enables it to focus completely on growth and flowering.
Very user friendly
CANNA Terra has one-part nutrients for growth and flowering stages. This ensures that the correct dose of nutrients is available for each stage of the plant’s cycle. In addition to this, CANNA Terra’s composition and dosage is designed in a way that also new and inexperienced growers will achieve excellent results.
Not recommended on bulk grade peat products that lack a nutrient starter charge and longer term pH control.