I think @snowmansnow and @Eric_n_Ga gave good advice above. These being mushrooms though, you're probably safe especially if you already have discos in the tank. My main concern (especially if I was the buyer) would be that I had the right quality, spectrum, and intensity of light to get them to show off their colors. I has some normal looking discos (blue with purple spots) that looked nice under t5s back in the day. Now with LEDs, they have developed bright neon green/blue streaks in them. Definitely look cooler now. Different light/water conditions can bring about all kind of changes in a coral. Some desirable, some not so much.
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