Got this one several months ago. I grow it on my apartment balcony (10th floor). Five blooms and waiting for the last two buds to bloom. Now the lady who sold it to me asked me to count how many days the blooms last in my conditions because apparently Out of her many customers, I am the only one who grow orchids on apartments' balcony.
Locally known here as Anggrek Larat (the Larat Island Orchid). The seller said that Dendrobium phalaenopsis and biggibum are two distinct species, pointing out that biggibum has a white spot deep in the throat. Because of that I still refer this plant as D. phalaenopsis.