About a month ago, I got 6 silvertip tetras (2 males, 4 females). At first, the males chased all the females and the females were nice to each other. However, the males eventually started targeting one tetra whenever they saw her, and at least 1 of the females joined in. She is not growing. This may be because they always try to chase her whenever she's about to eat something. She spends most of her time hiding. I tried getting 2 more full-grown female silvertip tetras, but this only helped for a day or 2. All of my other fish ignore her, although one of my brazos dwarf crayfish tried to chase her off when she was hiding in her territory. Should I try getting tetras closer to her size? Should she even be with any larger tetras right now? Thank you for reading!