Hi
@kenethica , it seems to me that they do not grow because you have a very wet substrate and the roots block without air, stop growing and soon the plant stops growing. you have to apply less water for each irrigation, the roots need oxygen. try to control by the weight of the pots, the substrate when it is almost dry is very light. the humidity is also low, at this stage the ideal for them is 70% -80% RH, with this humidity they grow very fast. but they look very healthy. good luck mate 🙏💪👍