Extra long spike, few flowers

[empiref]

Hello Everyone,

Bought this Phal two years ago, was planted in sphagnum moss; moved it to S/H right away and it thrived; the phal came with two flower spikes.

It has been growing new leaves and roots ever since I moved it; flush + fertilize + Kelpmax regularly. It has 15 leaves.

This year two spikes started to emerge, after a while, and when they reached about 15 cm in length, they stopped growing and a third spike emerged; length more than 65 cm and only a few flowers seem to be appearing.

Any help from the experts on the matter, am I doing anything wrong?