Ficus trees inside
my trees are dropping leaves yellow ones, I purchased a water thermoter, the codes are to dark for light and my windows are open all day. PH I do not know how to read this code and its for soil only correct? 1. Lighting code....shows dark 1 -2 ...on all 5 trees 2. Ph, soil check the soil in my pots can range differently why? And what is the perfect code for these 3. Moisture test varies every time I test each pot area I using test 3 different areas around the tree. What is the best code to be at....I will try again to download photos of each tree...thank you for your support too.
Yellow leaves and dropping leaves can be a result of the factors discussed in these articles:
It does look like your plants have mostly green leaves are are doing fairly well.
As for the pH and moisture meter, do you know what brand it is? It may have come with instructions in the package, or you may be able to find instructions online for that brand.