coco coir nutrients

do i water with nutrients everytime i water in coco coir? or do i alternate it with just water? I transferred them from soil to coco coir but there is still a large amount of soil.

Nutes every time. Especially Calcium.

what can i use that is a good source of calcium? i use roots organic nutrients do you know if that has a calcium content i mean it should right ?

Coco robs calcium so you need extra. Pick up a small bottle of calmag+ and you'll be set.