Never grown in coco

I like coir, grew it in a lot, to me its way better then peat. both peat and coir have a lot of pros and cons across the septum including environmental impact. If you are going to use just coir, mix it with 1/3-1/5 perlite for a soilless mix. Not all coir is created equal, you want one that is buffered and washed. Coir will also slowly take out calcium and magnesium ions and replace them with sodium and potassium. Best to always use a small ammount of a CaMg supplement from week one onward. when coir is buffered it does the majority of this but as it decomposed and breaks down more ion sites are revealed and exchanged. If this is just for the basket in a DWC or something similar your coir may grow algae on its top later if its kept super damp. I have also gotten gnats with it, just have a IPM solution in play or at the ready. Good Luck!

1. Very forgiving if you keep the soil pH balanced. 2. You will always need cal-mag in veg and higher magnesium/sulpher in flower. 3. Holds water well when mixed with peat moss. Drains well when vermiculite is added ( yes, I suggest adding these if you are using straight coco-coir ….or just add Happy Frog Soil Conditioner OR just start with Happy Frog potting soil and switch to Ocean Forest 5 weeks after germination)

Hmmm. Rockwool is great for hydroponics as it is excellent at retaining water and provides a lot aeration. MY beef with it is that 1) it's made out of rocks (where's the nutrients in that?) 2) it raises the PH of everything so PH issues are a constant battle and 3) it doesn't degrade! - it literally has similar properties to that of plastic in the degradation process and therefore isn't very eco-friendly. Imagine... your rockwool can sit for a human lifetime and not degrade. How can that be beneficial to your grow? Coir, on the other hand, is a natural byproduct of coconut husk and is a soft growing medium for plants that easily replicates the environment of normal soil. It also deters fungal gnats and foliar diseases and even though it's biodegradable, it is durable. You may not need to apply as many nutes to your grow as well because it retains nutrients very well... unlike rockwool. You can't treat both the same - read up as much as you can, look up diaries here that use coir and see what they do/don't do... Don't be nervous - you're about to learn something new and that's ALWAYS a plus! Enjoy the journey!