Hello Kerlito-
First I enjoy reading your posts, overgrow the world! The plant in the pic looks to be hungry. A good flush followed by a good feed at the right ph should fix your problem as long as the soil/medium isnt too acidic or rotten and soggy. Hope you find the problem, good luck! NS
yeah.............K................they are over watered.....
remove them from there current buckets and replant .....in loose dryer medium.....the over-watering has created a water logging that has cut off the oxygen levels to there Root zone......
which will lead to NUTE lock-out......
I my self only water once a week in soil.......
after the re-pot...........
let that medium get DRY before the next water/feeding....will cause the roots to RE SPREAD and start growing again.......