I have a large octopus/umbrella tree I just got and I can’t seem to get a hang of watering it ! I am watering from the top, I used 2 watering cans filled with water. Water was running out the bottom. I had a moisture reader in and it still said the soil was dry, hovering to moist, back to dry. I placed my finger in the soil this morning and it felt dry! Despite the two big cans of water and water running out. Some leafs are turning yellow too! Any suggestions ? Should I try bottom watering in the tub ? Or is it too large ? Thanks !