floppy leaved on phal indicates water issues..which you already know. water only when they need it. i water mine once a week and they are in a south window with good air movement. Cut back on your watering...water less frequently, and less water, until you see new vegetative growth. when you do water, always use fert at 1/2 strength...this will give them the "shot in the arm" they nees to recover. also, keep the light medium (east window, morning light, along those lines) and keep the air moving with fans. Finally, dont tinker with them. maybe you should buy a few new plants so you focus less on these phals

good luck!