Fungus in Semi Hydro

[nibbler]

I moved my Orchids to Semi Hydro last week. 1 Dend and 6 Phals. I used Hydroton, I steeped it for three days, changing water every 12-24 hours. Then I boiled it for an hour and then steeped it again in clean water with fertiliser. Put them in clear glass vases (As per article) and watched. Its been about 5 days and they are currently laid out on my chair. Roots bare and heavily sprayed with a fungicide.

I dont know if its the movement to the new medium or its come from the IKEA Orchids I bought two weeks ago. Either way the fluffy white fungus was on one or two roots but on all the sticks that support the plants. I have trimmed back the roots that are squishy or mouldy. I have the Hydroton in a bucket to be boiled again. I have fresh Hydroton ready to plant them again and I am going to give them another spray of the fungicide again tomorrow. I am disposing of the rods and (cutting the stems back due to no support at this moment and wanting the plant to concentrate on roots)

Basically long story short, am I missing anything. I know I should expect the roots to die off but is there anything I can do to help the plants? Thanks