Red-tailed carp were the largest population in the Golden Dew River, yet individually they were not particularly strong, and fish demons above the third tier rarely emerged among them.
Precisely because of this, many aquatic clans in the river fed on them. If Yang Jinlu, the river god of this waterway, slaughtered other aquatic clans wholesale to protect the red-tailed carp, then naturally she would receive no offerings from any race other than the red-tailed carp, nor could she answer the prayers of those alien races.
In that case, the power of wishes Yang Jinlu could draw upon would be limited to the red-tailed carp clan, shackling her continued growth.
Once the red-tailed carp clan became dominant in the future, the river's original ecology would inevitably collapse. Even the red-tailed carp would be affected and begin to decline, and Yang Jinlu might even suffer backlash from the power of wishes and perish!
Jiang Yingying faced a similar problem if she wished to become the god of Spirit Rhinoceros Mountain...
The sentient beings of the mountain sought nothing more than "survival" and "growth";
the easiest way to draw upon the power of wishes was naturally to become the guardian god of a particular clan or race, but in the end, that would restrict her cultivation on the divine path!
Only by treating all equally and protecting all living beings as far as possible could she gather more power of wishes and have a chance of becoming the god of Spirit Rhinoceros Mountain.
Yet satisfying the prayers of every living creature on the mountain would not be easy.
Weak creatures prayed not to be devoured by stronger ones, while powerful creatures prayed to catch more food.
Helping one population too much would lead to the extinction of others; forcibly using her own