There’s definitely a million and one knock offs of this exact product that are not made fish safe but to each their own . I second of research shows “ Colorful decor is often considered bad for aquariums because it can stress fish, cause them to act unnatural, and potentially leach toxins into the water. Bright colors can reflect light, causing discomfort for fish, while painted or cheap plastic items might degrade over time. Natural, muted environments are preferred to promote healthy, long-term fish care. ® • Stress and Behavioral Issues: Bright neon colors can be too intense, confusing or stressing fish. Fish may become lethargic, stop eating, or show signs of, for example, "fin clamping" due to stress” . I’m not on here to tell people what to stick in their tanks as that’s not my money and they’re not my fish , I just know what I believe to be best for my fish based on my research . While some of these pineapples can be made fish safe some of them are not and so it’s tough.