Fish breathe with their gills, and they need a constant supply of oxygen. Gills sit under the operculum. This is called the gill slit. Many fish have four pairs of gills, while sharks may have up to seven. Do fish really breathe water? A fish breathes by taking water into its mouth and forcing it…

You’ll find that you have roughly 4 cups of water in that bowl when it’s not filled to the top. 20% of the total is slightly less than 1 cup but you can go ahead and round it up to a cup. So every couple of days, you’ll need to change 1 cup of water…

Excess food causes a rise in nitrate and phosphate levels, which contributes to increased algae growth. Poor water quality also stunts your fishes’ growth, causing their colors to fade and lowers their resistance to disease. How do I know if I overfeed my fish? 10 Signs You Are Overfeeding Your Fish My fish are always…

The methylmercury is absorbed by the bigger animal, and — since the bigger the fish, the longer it lives and the more it eats — larger fish species accumulate a lot more methylmercury in their body. In other words, fish higher up the food chain “bioaccumulate” more methylmercury than do those lower on the food…

If your favorite betta fish isn’t swimming the way he should, there is a chance he is suffering from swim bladder disease. Swim bladder disease is a common problem in bettas but is easily treated. Usually caused by over-feeding and constipation, swim bladder disease is not contagious and is easy to treat.If your favorite betta…

Vacuum-packed, smoked fish will last for two to three weeks, or two to three months when frozen. Salting fish involves rubbing your fish with a dry brine made of salt, sugar, and spices and storing it in a refrigerator for two to three days. How long is vacuum-packed fish good for? Keep your fish in…

How much time does cod take to cook? Cod cooks really quick in a 400 degree oven. If your oven is pre-heated it should only take about 10 – 12 minutes depending on the thickness of your fish. For 350 degree oven expect the cod to take 25 – 30 minutes, and for a 375…

Symptoms generally appear within minutes to an hour after eating affected fish. They typically last 3 hours, but can last several days. How long after eating fish can you get food poisoning? Symptoms of scombroid fish poisoning begin quickly, within about 15 minutes to 2 hours after eating the fish. Most people experience some combination…

Often called Siamese fighting fish, Bettas are vibrant and can live from two to four years with the proper care. How long can a betta fish live in a fishbowl? How Long Can A Betta Live in A Fishbowl? Bettas that are kept in an ideal 2.5-gallon fish tank with a filter and heater are…

Pregnancy and Gestation The pregnant platy will behave pretty much the same as she does normally. There are no distinct behavioral changes to look out for. Like other live-bearing fish, she carries her fry until they are fully developed. The gestation period typically lasts for around 28 days. How long are platys pregnant for? Platies…

What temperature should cod be cooked at? No matter how you cook it, be sure that your cod reaches an internal temperature of 145˚F as measured by a food thermometer. At this temperature, its flesh will be opaque white and flake easily when pressed with a fork. How long does it take to cook fish…

How long should you fry cod for? Fry in the hot oil until golden, 2 to 4 minutes per side. Transfer to a paper-towel-lined plate to drain; season with salt and pepper. How do you know when cod is cooked? The best way to tell if your fish is done is by testing it with…