Yellow tips and water problem, what should I do?

How big a pot are they in? Is the pot feeling light (empty) when you water? Might be that your watering too often and not enough at a time. Easier to accidently water too often rather than too much at once. For example I give my plants 3-4L at a time and water every 3 days in soil 5 gallon fabric pots. You usually want a bit of run off when watering.

Try getting your climate in order water less regimentally but wnen they need my tent almost told me when to water when humidity got to low 50 they were genarally thirsty but after watering you want it around 60. But i was a little warmer too check this out https://www.dimluxlighting.com/knowledge/blog/vapor-pressure-deficit-the-ultimate-guide-to-vpd/