help please

Hi! Complete newbie here. 7B, Bonsais are being kept outside during the day (when its warm and sunny) and inside during the night (or when days are gloomy and cold). Watering once a day and plants are potted in bonsai soil. I purchased three different species of willow cuttings (Dragon...

I own eleven trees. All of them are doing well, prospering, growing, etc. BUT THIS FICUS DEAR GOSH! I only water when it needs, I have made sure it gets good light and not too much, it has been outside for weeks yet continues to lose foliage. I am out of ideas, help me Bonsai Nut, you're my only...