Majano is what they are i have some in my tank and they spread like aptasia. I thought they looked pretty at one point in time but now I’m beginning to dislike them as they are a nuisance coral…Majano Anemones are somewhat less of a nuisance than Aiptasia, partially because they are somewhat attractive, but primarily because they are not nearly as prolific. Unfortunately, like Aiptasia, they have a potent sting and can become a danger to the other sessile invertebrates in the aquarium.