It dies
A fish sinks to the bottom of the tank because its body is denser than the water, causing it to be pulled down by gravity.
Yes, betta fish can eat food that sinks to the bottom of the tank. They are known to be opportunistic feeders and will often search for food at different levels of the tank. It is important to ensure that the food is appropriate for betta fish and does not cause water quality issues.
The water sinks to the bottom. If your pick-up in near the bottom your engine will quit. You will need to drain the tank.
The water sinks and pools at the bottom of the tank
Yes. Algae wafers are food that sinks on the bottom of the tank. it is food for some bottom feeders like cat fish. However, some upper or mid strata fish will eat it. Unless they're carnivores.
What happens is the food rots in the tank. This rotting/decay creates gas (Ammonia) and that will poison the fish and burn its gills. This results first in sick fish and then death.
they just settle at the bottom of fish tank
gravel
I suggest that you learn more about your fish in your aquarium. One of your fish might be a bottom sucker which means that they eat all of the dirt on the side or bottom of your tank. If one of your fish are bottom suckers, that's probably the reason why your aquarium is clean. If none of your fish are bottom suckers, than somebody must be secretly cleaning your tank for you.
Certain types of fish, such as catfish and plecos, are known for cleaning the bottom of a tank by consuming algae and leftover food.
Fish eggs, fish sperm, mold.
in a tank or the ocean?