Does carp live in clean water?

A. 1

Aquatic animals (water animals) according to water quality are classified into grades 1 to 4 according to the degree of contamination of the water quality by BOD (biological oxygen demand), and are divided into aquatic animals that can live within that range.
Level 1: Very clear water for drinking (Buddlefish, willow dog, bank broker, hardwood fish, Planaria, crayfish, side shrimp)
Level 2: Bathable with relatively clear water (pyramids, hooks, shrieks, sweetfish, stone meat, nematodes, river-birds, oriental day-to-day birds, flying birds, creeps, water lice, and caldaguas (white)
Grade 3: tanned takhaks (fish, carp, loach, catfish, leeches, isomers, dragonflies)
Level 4: The water is black and fish are not allowed to live in contaminated water. (Earthworms, cadavers (red), moth flies, flowers, etc.)
It's not that clean water because carp live in the third grade.

Gentleman 8 years ago 0

OK