Regular additions of fresh water is crucial for the tadpoles. If you have regular rainfalls, you can let the tank sit under a tree or shrub in the garden and allow the rainfalls to refresh your tank. You just need to watch the level to make sure it doesn't overflow and wash away some of your tadpoles.adpoles have gills so they need really clean water just like your aquarium fish. If you plan to get some tadpoles, you'll need to get your water ready before you bring the tadpoles home. The best practice is to use rain water but there will be some who can't use rain water.
It may look like a dog, but the spotted hyena is more closely related to cats, civets, and genets. Also called the laughing hyena, the spotted hyena is a strong, capable hunter. It is the largest member of the hyena family (other members are the striped hyena, brown hyena, and aardwolf).
Of the dog-like hyena lineage, only the insectivorous aardwolf survived, while the bone-crushing hyenas (whose extant spotted, brown and striped hyenas) became the undisputed top scavengers of Eurasia and Africa. Hyenas feature prominently in the folklore and mythology of human cultures with which they are sympatric. Hyenas are commonly viewed as frightening and worthy of contempt, and are associated with witchcraft, because their body parts are used as ingredients in traditional medicine.