Easy-to-raise fish include guppy, Mary, blue dragon, lily fish, fighting fish, white cloud snakehead, zebra, black skirt and so on. These are attractive entry-level fish.

The simplest is carp:

Carp is a benthic omnivorous fish that eats both meat and vegetables. The bait spectrum is wide, the snout bone is developed, and it often feeds on mud. Carp is also a low-temperature animal, and its body temperature changes with the change of water temperature, so it does not need to consume energy to maintain a constant body temperature, so the total amount of bait intake is not large. At the same time, carp, like most freshwater fish, belongs to a kind of fish without stomach, with short intestine and fast metabolism, so its feeding habit is to eat less and eat more.