A lot of fish get rid of the pee through an tiny opening, called a pore, that's near their rear ends—and in some fish, waste also goes out through the skin or the gills. When a fish pees in a coral reef, the corals wave their tentacles around like tiny arms to grab nutrients from the pee and absorb them.
Since they live in water, most fish will pee a little bit almost constantly. Most fish do not have urinary bladders that store pee until it's safe to let it leave the body. They just go whenever they feel like it!
For freshwater fish specifically, they have a high concentration of ions and a low concentration of water inside their bodies compared to the water they live in, so water is constantly diffusing into the fish. Fish kidneys work overtime to get this water back out of their body, meaning freshwater fish pee a lot.
Freshwater fishes have to *get rid* of water constantly to keep their cells from bursting, which means they pee *a lot*. They're pretty much peeing all the time. If I peed as much as a freshwater fish, I'd release up to 28 liters a day, which is about 20 times more pee than I usually make.
Freshwater fish produce large volumes of dilute urine, which is low in salt. Less demand is placed on the kidneys to maintain stable concentrations of blood salts in brackish or low salinity waters.
Goldfish don't urinate
No fish urinate. Instead of expelling ammonia by urinating (as mammals do), fish filter ammonia from the water using their gills.
While freshwater fish don't drink water, they do need to regulate the amount of fluid in their bodies. They do this by excreting excess water through their kidneys in the form of dilute urine.
Fish have gills that allow them to “breathe” oxygen dissolved in the water. Water enters the mouth, passes over the gills, and exits the body through a special opening. This keeps an adequate amount of water in their bodies and they don't feel thirsty.
Generally, the color of fish urine is clear although sometimes yellowish-brown. Also, the smell of it is different than poop.
Yes, fish experience both physical and emotional pain. Scientists say that it's likely a different type than what humans experience, but it's pain nonetheless. Fish have nerve cell endings called nociceptors, which alert their bodies to potential harm such as high temperatures, intense pressure, and harmful chemicals.
Aquarium Specialist, Aquarium Doctor Inc. Support wikiHow by unlocking this expert answer. I would recommend floating your fish's bag in the aquarium water for at least 15-30 minutes. This way, your fish will have enough time to acclimate to the water temperature of the tank.
Fish don't really know they're wet. But what about you? Have you ever thought that you might be immersed in an environment and not know it? Like fish are unaware of being in water, many Christians are just as unaware of the postmodern world they live in and the influence it has on their lives.
Neurobiologists have long recognized that fish have nervous systems that comprehend and respond to pain. Fish, like “higher vertebrates,” have neurotransmitters such as endorphins that relieve suffering—the only reason for their nervous systems to produce these painkillers is to alleviate pain.
Externally fertilizing fish species, which represent the vast majority of fish species, release both gametes into the water for fertilization. The gamete contact with the external aqueous environment activates the spermatozoa motility (Morisawa 1985).
It's pretty easy to tell when fish are sleeping: they lie motionless, often at the bottom or near the surface of the water. They are slow to respond to things going on around them, or may not respond at all (see some sleeping catfish here). If you watch their gills, you'll notice they're breathing very slowly.
While fish do not sleep in the same way that land mammals sleep, most fish do rest. Research shows that fish may reduce their activity and metabolism while remaining alert to danger. Some fish float in place, some wedge themselves into a secure spot in the mud or coral, and some even locate a suitable nest.
Changes in behavior - be on the lookout for lethargy, fast frantic swimming, a refusal to interact with other fish, plunging into the sediment at the bottom of the tank and floating at the top of the tank when they'd normally hang out on the tank floor (or vice versa) could indicate boredom.
A lot of fish get rid of the pee through an tiny opening, called a pore, that's near their rear ends—and in some fish, waste also goes out through the skin or the gills. When a fish pees in a coral reef, the corals wave their tentacles around like tiny arms to grab nutrients from the pee and absorb them.
Feed a variety of foods
While complete flake or pellet foods provide the basic components of your fish's diet, they can be a little boring! Provide a little variety to your goldfish's diet, with the occasional treat included. Peas, spinach, shrimp and Daphnia all make excellent tasty treats for goldfish!
Goldfish have a lifespan averaging about 10-15 years, with some varieties living up to 30 years when provided with proper care. Unfortunately, many goldfish do not reach their lifespan potential due to inadequate housing conditions. Housing needs to meet both their behavioural and physiological needs.
Here's how you can encourage your goldfish to just keep swimming. If you've ever noticed your pet goldfish lurking at the bottom of his tank and looking a bit glum, you might actually have something to worry about.