Very new to bettas - just got 2 female babies 3 days ago. One of them is slightly larger than the other. The smaller one gets chased occasionally but she has plenty of hiding spots. I'm worried because the larger one keeps getting to all the pellets and the smaller one isn't really eating. How do I prevent overfeeding and underfeeding? Or is the smaller one just taking a while to adjust to the environment with a fellow baby female?