Loaches are timid fish that prefer coming out in the darkness of night. If you have an aquarium you can choose add them to it to liven it up as they have beautiful colors.You can use either floating plants or reduced lighting in aquariums to offer a favorable environment. They eat live and prepared foods and normally look for food at aquarium bottoms. Although their body length is around twelve inches in the wild, they grow to only six inches within aquariums.Few varieties of loaches like Botia helodes and Botia lohachata are very aggressive. It is best to keep these species alone in aquariums.