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Is this Sina?

No problem. Happy growing

Yes coconut fibre just the raw stuff is good. the worms love it and they turn it into pure castings which is super food for your garden. Its a great way to turn waste into plant food. Let the worms eat through the coco in the first month or two. Then you can add veggie scraps after they have worked through the coco. Flush water through the worm farm at least once a week and you can dilute the worm tea or wee 10 to one is recommended but i don't most times. I just give it to the plants the way it is and have never had nitrogen burns etc. 

Buy or make a worm farm. Best food for plants just add coco and veggie scraps