It came from EYOF ina smaller pot in rockwool. After it got a little used to being in my conditions I repotted in a larger pot. I am not a lover of rockwool but I didn't disturb the roots I just backfilled it with 9mm-12mm orchiata. At some stage ( probably the next pot ) I will remove the rockwool and just use the bark. My feeding regime is a small amount of calcium nitrate
(one tsp per 2 gallons) with 2tbsp of liquid seaweed every week but with a good flushing of fresh water twice between feeds. The roots were fine at the last repot so I expect they are still OK considering the new growths. Thanks for all the comments and questions,
Ed