New constructable object, meant to be kept indoors called the Aquarium
When filled with water and frogspawn, the eggs will hatch over time and first become tadpoles, then frogs & toads which can then either be taken from the aquarium or left inside to fill up the amount of frogspawn present, breeding softcap given by the q of the water the Aquarium is filled with.
Tadpoles would be a new curio