Anemones

This bright neon creature is a Bubble Tip Anemone, or BTA for short. BTAs are considered the best choice for hobbyists when it comes to keeping anemones, and many clownfish host in them. Do your research before making that purchase, and let your tank age for a minimum of 9 months first. This one is almost neon in color, which could indicate it is actually in a bleached condition; healthy anemones tend to have richer color and aren't as opaque.