What does it mean when prawns turn black?

Black spot occurs when the shell on the shrimp begins turning black within hours or days after harvesting. This darkening is due to an enzyme process causing oxidation in the shrimp, just like in cut apples. It's not harmful or indicative of spoilage, but it's not attractive.

FAQ

• Does the walking catfish have lungs?

  Walking Catfish This long, dark fish has lung-like organs and a high tolerance to harsh living conditions, and it can leave the water to walk/wiggle to a better location as long as it stays moist.

• Do you refrigerate clam juice?

  It should keep in the fridge for a week or two- and you should be able to smell it if it goes bad. However, you can just freeze any unused juice in 1 or 2 Tablespoon portions (in an ice cube tray) and keep it around for the next time you need it.

• Are kissing fish aggressive?

  Kissing gouramis rate as semi-aggressive. They are not as brutal as some fish, but not exactly peaceful either. Most of the this species' aggression is directed at fish that look similar to it, particularly those with the same shape.

• Why do prawns taste so bad?

  The tasty umami molecules are water soluble and are lost to water during any cooking process involving water. Eg, if you cook them in soup, the shrimp becomes tasteless and the soup gets the taste. If the manufacture boils the shrimp and it's orange and not grey anymore, they no longer have full flavor.

• Do alligators eat predatory fish?

  Alligators are primarily carnivores feeding on prey like fish, mollusks, other reptiles, birds and small mammals such as monkeys.

• Does bleach kill mosquitoes in standing water?

  Bleach does kill the larva; unfortunately, it is not the safest method to rid your home of the mosquito larva. Pour the chlorine bleach directly into standing water such as pools to kill mosquito larva. However, chlorine bleach is toxic and can harm any wildlife that drinks from the water.

• What size flies for salmon?

  What size flies for salmon? When water is high, deep, or swift, use larger, bulkier flies (sizes 4 up to 2/0). When water is lower and slower, use smaller, more sparsely dressed flies (sizes 6-8).

16 Related Question Answers Found:

• Can you eat Asian tiger shrimp?

  Asian tiger shrimp are predators, unlike the native scavenging U.S. shrimp. They eat crabs, clams, and even other shrimp. ... These giant shrimp are totally edible, and supposedly taste good! They're delicious in butter sauce just like other shrimp.

• Do koi need moving water?

  Moving water is important for filtration, as koi carp generate a lot of waste. Moving water through a filter helps to keep the water in good condition, which helps keep the koi healthy. Oxygenation is also vital for koi.

• What can I do with slimy mackerel?

  Used whole as dead baits or cut into strip baits, slimy mackerel are great when fresh. However, they become very soft once frozen and are not as appealing. The way to rig slimies as whole baits is similar to those used with pilchards, incorporating one or two hooks.

• What is the best Colour squid jig for night?

  Red is a good option for night time squidding. Rainbow for cloudy conditions. Glow is best for overcast low light and night. Clear is best for bright sunshine and clear water.

• Is cold smoked salmon fully cooked?

  Most smoked salmon is cold smoked, meaning it's smoked at a temperature that's not hot enough to cook the fish, nor hot enough to kill potentially harmful bacteria. ... It's fully cooked, lighter in colour and flakier than cold smoked salmon.

• Which fish has more Omega 3?

  Cold-water wild varieties of fish like mackerel, tuna, salmon, sardines and herring contain high amounts of omega-3 fatty acids.

• Can you feed frozen shrimp to freshwater fish?

  Never had any problems. You can certainly thaw the shrimp out in tank water. If you are concerned what might be in the water, simply throw it down the drain when you're done.

• How fattening are prawn crackers?

  An average portion (104g) of prawn crackers contains 608 calories, almost a third of an adults' guideline daily amount.

• What fish is smoked kippers?

  Herring What are kippers? A kipper is a fat herring (caught in season) that has been split through the back, gutted, opened flat, salted or brined to reduce its water content and then cold smoked. This is a process that cures and dries the fish while imparting a smoky flavour, without exposing it to heat.

• What is the best time to fish today?

  Best Times to Fish

  • Early Morning. 6:00 a.m. to 9:00 a.m.
  • Late Morning to Afternoon. 9:00 a.m. to 1:00 p.m.
  • Afternoon to Dusk. 1:00 p.m. to 5:00 p.m.

• How long do ornamental carp live?

  In the absence of proper care, ornamental koi do not survive nearly as long, suggesting that pond keepers can have a significant impact on the lifespans of their fish. Common carp, a close relative of ornamental koi, live to be 15 to 20 years in the wild, but have been known to reach 47 years in captivity.

• How old is a 10lb carp?

  Some strains of carp grow like the clappers. You can buy a 10lb carp that will be a 30 in 10 years.

• Can you get sick from frozen prawns?

  Frozen prawns shouldn't be cooked straight from the freezer as it can cause the prawns to overcook easily. However, it is not unsafe to cook prawns from frozen, whether they are pre-cooked or raw.

• Will a crayfish eat my fish?

  Crayfish will typically eat whatever they can catch, but since they are slow-moving, they are rarely able to harm most types of fish or shrimp. They prefer foods like invertebrate pellets or blanched vegetables (such as zucchini, carrots, and spinach), but will also eat fish food and algae wafers.

• Why is fish bad for you?

  Fish live and eat in those waterways, so mercury accumulates in their systems. They have trouble expelling it from their bodies as it builds up in their tissue. Mercury poisoning has been known to cause nervous system disorders and reproductive issues as well as developmental problems in children and unborn babies.

• Does lemon juice make raw eggs safe?

  Some people are concerned with the threat of salmonella associated with raw eggs. ... Also, someone told me as long as you add lemon juice to an uncooked egg, you're fine. They even said lemon juice will fry an egg.