Why is my fish dying? This troubling dilemma has arisen, and I find myself bewildered and desperate for answers. Could it be due to an environmental factor within the aquarium? Am I perhaps overlooking the importance of proper water chemistry, such as pH levels, ammonia concentration, or the presence of harmful toxins? Is the filtration system functioning adequately to provide a safe habitat? Furthermore, could my fish be succumbing to an unidentified disease or parasite? Are the stressors in their environment contributing to their untimely demise, whether due to overcrowding, sudden temperature fluctuations, or incompatible tank mates? Moreover, is it possible that my feeding practices are inadequate, leading to malnutrition or overfeeding? In the face of this heart-wrenching situation, what proactive measures should be taken to ascertain the root cause and ultimately alleviate the suffering of my aquatic companions? What steps can I implement to prevent further loss? Could expert guidance truly make a difference?