I water 4 times a day in coco, and I think that once the plants are going well and thriving that is the least they need. If I lower to two or three times they do not do well. Many misdiagnose as over heat but that’s not it, it’s letting them dry by accident just a bit. Once the coco drys it resists water and is hard to get to fully damp again, so not good, keep watering.