Yes, fish do add weight to the overall weight of the water in a pond. This is because the fish has mass, which adds to the mass of the water. As the fish swims around in the pond, it displaces the water in the pond, which adds to the overall weight of the water in the pond. Furthermore, when a fish excretes waste or urine, it adds to the overall weight of the water in the pond. The additional organic matter in the water, such as food particles and other organic materials, also add to the overall weight of the water in the pond.
They add to the overall weight of everything in the pond. If the whole pond is
sitting on a big scale, then the weight increases when you drop in some fish.
Same with a big sealed container of air when you put some flying birds into it.
To keep the bait from floating on the surface of the water.
You want to make floating pellet feed for your fish farm. I have all things to make fish meal but do not know how do it.
when they are floating on the water
That depends on the weight of the fish as compared to the weight of the water their bodies displace. If it's a heavy, dense fish, then the tank with the fish would weigh more. If it's a light, less dense fish, then the tank with water only would weigh more. This assumes that the water displaced has been removed from the tank, right? If you are adding the fish to the water then I think it should increase the weight regardless of the density of your fish. The question then might be, does the fish weigh less when it is swimming than it would on a dry scale?
If the fish is actually 'floating' rather than the fish has simply positioned itself at the surface of the water as they normally do there may well be something wrong. Check water quality daily and replace at least 10% every day if you want healthy fish.
If there is no overflow of water, then the container's over-all weight goes up by the weight of the fish. The weight of the water itself doesn't change.
Water plants like Hornwort, Java Fern, Amazon Sword, and Anubias are beneficial for freshwater fish as they provide shelter, oxygen, and help maintain water quality by absorbing excess nutrients. These plants also contribute to the overall health and well-being of the fish by mimicking their natural habitat.
floating fish
They have organs called swim bladders, which balance the fish and keep them from floating.
When a fish is floating on it's side, on the surface of the water, it's probably dead.
Fish body is of boat shape to balance itself in the water nature have given swimming bladders for fish.
floating like fish