Yes, you can substitute coco coir for the peat moss using roughly the same amount. Coco coir and peat perform similarly when it comes to moisture retention.
If you do use coco coir instead of peat, be sure to leave out the lime as well. Otherwise, your soil will be too basic. (Coco coir has an almost-neutral pH, whereas peat is more acidic; lime is used to counter the peat.)
Yes, you can substitute coco coir for the peat moss using roughly the same amount. Coco coir and peat perform similarly when it comes to moisture retention.
If you do use coco coir instead of peat, be sure to leave out the lime as well. Otherwise, your soil will be too basic. (Coco coir has an almost-neutral pH, whereas peat is more acidic; lime is used to counter the peat.)