Ключевые слова: animal, aquarium, aquatic environment, aquatic flora, aquatic life, aquatic plants, beauty, biodiversity, colorful, ecosystem, ecosystem balance, environment, fins, fish, fish colors, fish habitat, fish health, fish tank, fishkeeping, freshwater, freshwater ecosystem, freshwater fish, gray, habitat, hobby, leisure, marine, marine life, natural behavior, natural habitat, nature, orange, ornamental, ornamental fish, peaceful, pet care, pet owner, pets, scales, serene, swimming, tropical, tropical aquarium, tropical fish, underwater, underwater beauty, underwater life, underwater plants, wildlife, wildlife observation,