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Reef aquarium
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<p>A reef aquarium or reef tank is a <a href="/facts/Marine_aquarium/jnPMTvG6">marine aquarium</a> that prominently displays live <a href="/facts/Coral/j7fBLrpw">corals</a> and other <a href="/facts/Marine_invertebrates/Dt72Kb7s">marine invertebrates</a> as well as fish that play a role in maintaining the tropical <a href="/facts/Coral_reef/xzeK6yAp">coral reef</a> environment. A reef aquarium requires appropriately intense lighting, turbulent water movement, and more stable water chemistry than fish-only marine aquaria, and careful consideration is given to which reef animals are appropriate and compatible with each other. </p>