What colorful marine invertebrate is known for its ability to split light into rainbow patterns and is popular in reef tanks?

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Mantis shrimp possess the most complex eyes in the animal kingdom, with 16 types of photoreceptor cells compared to humans' three. While fascinating, they are generally considered a pest in reef aquarium(Deals) setups because they can crack glass and eat other inhabitants. Some dedicated hobbyists keep them in species-only tanks to appreciate their remarkable visual abilities.

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