Fish require proper care, not just bowls or tap water. Use a filtered, heated tank, cycle it before adding fish, avoid overcrowding, feed properly, and perform weekly water changes for healthy aquariums.
Regular testing of ammonia, nitrite, nitrate, pH, GH, and KH is essential to maintain healthy aquarium water and prevent fish stress or death. Use reliable kits like API Freshwater Master and tools like TDS meters. Establish routine water changes and enhance biological filtration for a thriving tank environment.