Also - does that glass container have drainage holes at the bottom of it? Previously, I assumed you had a 'semi-hydro' setup. So I didn't focus on the once-every-two-weeks watering. On the other hand ----- if it is once per 2 weeks, then the assumption could be that the LECA remained quite wet for most of that time?
So maybe the main points will be ----- potting method, drainage, watering technique, temperature range, lighting level (and lighting duration), and air-movement.
I'm thinking that - assuming temperature for the orchid growing (leaves and roots) and lighting levels are good - and humidity is ok, and if there is gentle air-movement in the growing area ----- and if you use a regular opaque plastic pot plant pot with drainage holes at the bottom (eg. black-coloured plastic plant pot bought from bunnings or somewhere) ----- then your phal can grow nicely, and do very well.
A suitable watering strategy would just be needed, and it's definitely not hard to simply water the media towards the sides of the pot ----- every morning if you want to. I'm thinking ------ to just do/try that ---- the problem(s) previously faced will most likely become gone.
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