Quote Originally Posted by uncasteeb
Depends on the Phrag & the growing enviroment but i,d go for CHC for a medium.Rockwool is also very good(thats what mine were in when i bought mine) but i,ve no experience with it(changed over to s/h almost immediately i got them).Bark will be fine but it may need changing every 6 months or so if you grow the Phrag wet.
Would a mix of medium & fine fir bark be ok you think?