Help, i think there drying

i had urlier post of pics that my plant had brown spots on her but now its day two and yes.... they spots are now bigger and turnes out the spots where couler changing because the leafs are drying up! Is this normal? the top of my plant is a nice green but the lower leafs are very yellow and crunchy looking like they will break off. I recently had a bar bulb reflector and now have an air cooled and temps went from 90.2 ta 81.2! Is this a temp issue? maybey there in shock? i really needfeed bac because my one other plant is starting to do the same at the tips of her leafs!

Comments will be appriciated

It may be shock becasue you changed your light. Or it may be overwatering or too many grow nutes. The good thing is that you dont have to worry about yellowing leaves being on your plant unless they are diseased or infested. I see your plants are in ceramic pots with plates on the bottom. A good way to tell if they are getting enough water is if you see water in the bottom plate under the pot pooling up. If there is no sign of condensation your plants need more water. If there is water on the plate and your still giving it more than its possible your giving it too. My best bet though would be that your giving it too many nutes and overwatering it. try waiting until your plate dries up under your pot and giving it just water for another 4-6 days before you add your nutes

i have not yet bin giving them nutes just strait RO water for now, when i water them i go around the soil to make sure its perfectly moist and i never see water go threw the holes at the bottom and on the bottom plate! i just feel that the pot has gotton heavier and i water them once a day for when i get home they are feather light and look very dry