I made the mistake of adding RBTA in my tank and now I have a ton that are hard to remove since they are in my rock work and walk all over. I ended up getting this guy, a tube anenome. They don’t move and look amazing. They need a sand bed. You bury their tube in sand like planting a bulb. They don’t walk like other anenomes. Just need to keep away from other corals as they have a strong sting.