I water them once a week by soaking them in filtered water for ten minutes and give them half strength fertilizer (shultz) every second watering,starting 2 weeks ago I also have them under full spectrum glow lights. One which is a phrag. Geralda is in bloom as we speak
I have three phrags sitting in water and three phrags not sitting in water and if you would ask me which ones do better I would have to say they are performing the same in my opinion it doesn't make any difference