Species just like the chili rasbora are one of many number of education fish that may thrive in a five-gallon aquarium. Therefore, some fish species are actually classified as seriously endangered and are becoming more scarce while in the wild. Practically every one of the rare species on this list https://www.tumblr.com/aquariumcustom/770258749902471168/facts-about-professional-pond-cleaning?source=share