Im sure youll be fine doing that mate. I defo wouldnt risk trying to did any coco away from the roots. I know you need lower ph'd waterings in coco, but im sure the roots will spread into the new soil in no time and you can just water them like normal in soil.
Im prob just thinking into it too much but lol
Lol man. Thanks I'm hoping it will be fine ! Put that joint down dude.