Malachite green is widely used in the aquaculture industry as an antifungal and antiparasitic agent to treat fish and fish eggs, particularly in controlling fungal infections like saprolegniasis. It is also employed as a disinfectant in aquaculture systems to prevent the spread of pathogens. In the textile industry, it serves as a dye for silk, wool, and leather, providing a vibrant green color. Additionally, it has been utilized in biological staining for microscopy to highlight cellular structures. However, its use is restricted or banned in many countries for food-producing animals due to concerns about toxicity and potential carcinogenic effects.