Oryzias latipes is a type of freshwater fish that lives in swamps, rice fields and fish ponds. Oryzias latipes fish has a small body size, the body length of this fish reaches 5 cm. This fish has a beautiful yellow color and if kept in an aquarium it will look beautiful especially if kept in groups of 5-8 fish. In nature, Oryzias latipes fish reproduce by laying eggs. Fish Oryzias latipes live and like aquatic environments with moderate levels of lighting. Oryzias latipes fish can be kept in an aquarium as ornamental fish. In order for these fish to grow and live healthily, the maintenance of Oryzias latipes in the aquarium needs to be done in a good way. Important things that need to be considered when we are going to keep Oryzias latipes fish in the aquarium, namely: 1. pH of water. The pH of the water affects the fish kept in the aquarium, so that the fish can live healthily, the pH of the aquarium water must be optimal. The pH value of a good aquarium water is 6.7. 2. Water hardnes...