Yes, a split pectoral fin can heal. If the split is not severe, it will typically mend on its own. However, for a severe or deep split, intervention is needed. In such cases, a small splint (e.g., made from a toothpick) can be used to support the fin, and the edges can be carefully stitched together with a sterile suture to help the fin heal correctly. Without this support, a severe split may not close properly and could remain permanently damaged.
