The clown pleco is one of the most popular small catfish for aquariums ... South American pleco species by being primarily carnivorous rather than scavenging from algae and other vegetable ...

That’s because these algae-loving, waste-clearing ‘janitors ... They can be very beneficial to aquariums because some species can live for more than 30 years and they can help to clear ...

Giant clams, among the largest mollusks in the ocean, are a fascinating part of tropical coral reefs. These enormous ...