Answer It is the platy's waste.
Loose Ends
There will be a string hanging from its butt.
The relationship between the tension in a string and the hanging weights it supports is direct and proportional. As the weight of the hanging objects increases, the tension in the string also increases to support the added weight. This relationship follows the principle of equilibrium in physics.
If the pen is hanging and you cut the string, the pen will fall due to gravity unless there is another force acting on it to keep it suspended.
No, a tassel is a string bobble hanging from the fez
It is a mass or object hanging from a rope, string or wire.
It is a mass or object hanging from a rope, string or wire.
A string hanging from your ear could be part of a piece of jewelry, like an earring or an ear cuff. It might also be a string from a face mask, if you were wearing one and it got caught. Alternatively, it could simply be a loose thread from clothing or an accessory.
The forces exerted on a yoyo hanging motionless on a string are gravity acting downward and tension in the string acting upward. These forces are balanced, resulting in a state of equilibrium where the yoyo remains stationary.
The best hooks for hanging string lights are typically adhesive hooks, screw hooks, or cup hooks. Adhesive hooks are easy to install and remove without damaging surfaces, while screw hooks provide a more secure hold. Cup hooks are versatile and can be screwed into various surfaces for hanging string lights.
It is possible that a platy is about to give birth.
Perhaps see this question:Why_has_a_guppy_fish_has_been_hanging_around_the_bottom_corner_of_the_tank_trying_to_seclude_herself_from_the_other_fishAlternatively, perhaps she is trying to seclude herself?