Recommended for 18 inch x18 inch tank, fit for different small aquariums , such as saltwater fish, live rock, low-light soft corals, and reef aquariums. ★【Small and beautifully designed】: Has a ...

On occasion, it is of vital importance to consider how little we know about the spinning rock we all live on. Take coral reefs, for example. Given how much they've been studied, you'd think we've ...