How do angelfish excrete?

Angelfish excrete waste primarily through their gills and kidneys. Ammonia, a toxic byproduct of protein metabolism, is excreted directly into the water via the gills, while solid waste is eliminated through their intestines. Additionally, the kidneys help regulate water and ion balance, filtering out excess salts and maintaining homeostasis in their aquatic environment. This efficient excretion system is essential for their survival in freshwater habitats.