Category Archives: Fish Facts

How do fish drink water? Or do fish drink water at all? It's a question many people ask. The answer is different depending on if it is a freshwater fish or saltwater fish.

admin    January 19, 2019   CATEGORY: Fish Facts

How Do Fish Drink Water?

One question many people have asked is: Do fish drink water? Just like humans live in air and also breathe it, fish need to consume water to survive. How they get water into their bodies, however, is the interesting part.

Saltwater and freshwater fish take in water differently. They do need salt in their bodies to survive, but they can’t have too much nor too little. As a result, they naturally create a harmonious environment with the water around them through the process of osmosis.

Osmosis is based on the traveling of water across a membrane. For an optimal environment and to ensure the survival of the cells, osmosis must be regulated.

How Do Saltwater Fish Drink Water?

How do fish drink water? Although some fish do drink water, it's really based on the process of osmosis. An isotonic solution is one in which the level of salt is the same both inside and outside of the cell. In a hypotonic solution, there is more salt inside the cell than outside. Hypertonic refers to the level of salt being greater outside the cell than inside it.Saltwater fish take in water through their cells. In order to avoid taking in too much salt, however, they eliminate excess salt through their gills. In a normal environment, therefore, the bodies of saltwater fish are less salty than the water around them.

In other words, it’s saltwater in, saltwater out, all the time; saltwater fish constantly lose water out of their bloodstream through osmosis.

How Do Freshwater Fish Drink Water?

Freshwater fish maintain a higher level of salt in their bodies than the freshwater around them. Contrary to saltwater fish, freshwater fish are constantly gaining water into their bloodstream through osmosis. In order to eliminate excess water, they urinate frequently.

Does Water Get Into Fishes’ Mouths?

It’s natural that some water gets into fishes’ mouths. Once that water gets into a freshwater fish’s mouth, the water is directed out through the gills. Saltwater fish send some of the water that is coming in by their mouths through their digestive tracts and also over their gills.

What does all this mean regarding your fish tank? Most likely, if you regularly lose water from the tank, it’s due to evaporation. The fish aren’t really “drinking” large amounts of the water; instead, they’re circulating the water in and out of their bodies.

Contact Seatech Aquariums for fish tank maintenance in the greater Phoenix area.

TAGS: Fish Facts, fish tank, freshwater fish, saltwater fish,

If you are considering obtaining one for a freshwater aquarium, there are a few oscar fish facts you should know, such as the fact that it's one of the smartest freshwater fish around.

admin    December 31, 2018   CATEGORY: Fish Facts ,Freshwater Aquariums

Freshwater Life: Facts About the Brilliant Oscar Fish

Oscar fish tend to stand out. Once you own one, everyone knows it. It’s probably because it’s one of the toughest and smartest freshwater fish out there. It also grows to a much bigger size than some other fish. With all of this to back it up, it can really command your attention.

If you’re considering obtaining an oscar fish for a business or home aquarium, here are a few things you should know.

Oscar Fish Facts

1. They’re so smart that they’re one of the few fish that can be trained to do tricks.

2. An oscar will need its own tank, but it can live with other oscars. They are actually happier with at least one companion in the fish tank. The tank should be at least 50 gallons.

3. You might be able to feed them from your hand.

4. Oscar fish generally grow to about 18 inches, and they grow quickly. In captivity, they may remain as small as 12 inches, but oscars as large as 22 inches have been found in the wild. They’re also relatively round and chubby.

5. It is a member of the cichlid family. Its scientific name is Astronotus ocellatus.

6. They are originally from South America’s Amazon River basin. Oscar Fish Facts: They grow rather large, so they need their own aquarium. Oscar fish thrive best in a freshwater aquarium with at least one similar companion.

7. They tend to live for 10 to 13 years.

8. They produce more waste than some other fish, so the aquarium will require more frequent cleaning. You will also need proper filtration systems for this type of fish. Nitrates for the oscars’ tank should be as close to 0 ppm as possible, but no greater than 40 ppm.

9. While maintaining an ideal water temperature is critical for all fish, oscars especially need the right environment in order to thrive and stay healthy. The temperature should be about 77 degrees. Use a heater for their tank to maintain the right temperature.

10. They can camouflage themselves for protection in the wild, but their bodies are usually dark.

11. Males and females generally look the same. Only their genital papilla is different.

12. In addition to teeth in their jaws, they have strong teeth at the back of their throats.

13. A female oscar can lay 1,000 eggs within a few days, but they won’t all make it.

14. Oscars can play dead when they feel threatened.

15. They need vitamin C to live.

16. In captivity, they should be fed crayfish, worms, and insects such as grasshoppers and crickets.

Help Maintaining an Oscar’s Fish Tank

Clearly, keeping an oscar’s fish tank clean and safe for the fish isn’t an easy task. Oscar fish can make a mess of their tank in no time, so you really need to stay on top of it. It’s also critical to maintain proper pH levels, nitrate levels, and water temperatures, as well as use filtration systems that are up to the job.

In order to ensure the most ideal environment for your oscar, it’s best to work with an aquarium maintenance technician. Contact us at Seatech Aquariums for aquarium maintenance services or fish tank installation, or to ask questions about how to properly care for your oscar fish.

Contact Seatech Aquariums for aquarium maintenance or fish tank installation services.


TAGS: Freshwater Aquarium, Freshwater Fish Facts, Oscar Fish Facts,