Tried sphag and bag method, what do you guys think?

[Ray]

While you might be able to get away with potting it up now, I'd wait until you have about 3"-4" of total root length before doing so.

C & C Orchids sells KelpMax in Canada. Mixed at 4ml/L, you'd remove that plant from the bag and immerse it completely for about an hour, gently shake it off to remove most of the standing water, and stick it back in your bag. After three such treatments, and probably one-week intervals, stop using the KelpMax and you should see lots of roots emerging very soon.

When it's ready, pot it up in medium that has been presoaked in the KelpMax solution, and at that point only add it to your water one time per month.