Problem: Article: Adding a new fish to the tank can be stressful for both the new fish and those who have already made their home in the tank. To help make the introduction as stress-free as possible, lower the tank's light or turn them off completely before introducing new fish. This will help create a less hostile, less stressful environment. Never buy several new tropical fish at once and add them to your tank. If you overload your tank, this can upset the pH balance, the ammonia levels, and the quality of life for the fish and other creatures. Let the unopened fish bag float in the tank water for about 30 minutes. This will help your new fish adjust to the temperature of the water in the tank. The water they have been housed in will be a different temperature from the water in your tank, so this process of acclimation is important. After the fish has acclimatized to the water temperature, keep the bag afloat in the tank. Slowly open the bag and pour about of a cup of tank water inside, taking care not to spill water into the tank. Every 15 minutes or so, add another quarter cup of the tank water into the bag. After an hour, your new fish should have adjusted to your tank's water chemistry. The water from the quarantine tank should be kept separate from the main tank's water supply in case there are any parasites or bacteria in the quarantine tank. The water from the quarantine tank may contain parasites or bacteria that may harm the other fish in your tank, and a freshwater dip will help remove anything that can harm the fish or contaminate the tank water. Add dechlorinated freshwater to a container, making sure that the pH and temperatures are as close as possible to those of the main tank. Using a net, gently lower the fish into the freshwater dip and allow it to swim in the container for 3-4 minutes, watching the fish's behavior closely. Remove the fish from the freshwater if it floats or stops moving and place it back into a quarantine tank. Once your new tropical fish has had a freshwater dip, it will be ready to be placed in the main tank. Gently scoop up the fish with a net. With the fish in the net, swiftly but smoothly dip the net into the tank. Hold the net inside the water until the fish swims out of the net. As the new fish adjusts to its surroundings, be on the lookout for any signs of aggression, including chasing and nipping. Rearrange the plants and rocks in the tank to create new territorial boundaries if you see any signs of hostility or stress. If the aggression continues, place the aggressor in the quarantine tank for a half hour or so and return it to the main tank.
Summary: Lower the tank lights. Introduce new fish one at a time. Place the fish bag in the water. Pour some tank water into the bag. Give your fish a freshwater dip. Transfer the fish with a net. Place the net in the tank. Monitor the fish.

Problem: Article: There is no scientific evidence that has proven that increasing the number of immune-fighting cells is a good thing. In fact, in some cases, increasing the number of certain "good" cells in your body can increase the risk of stroke.Medically speaking, the best thing you can do for your immune system is to live a healthy daily lifestyle and get proper and timely medical treatment for illnesses and infections. Zinc is one of the most important components of enzymes present in white blood cells, and a deficiency of this mineral can result in a weaker immune system. You can get zinc from meat, fish, and milk. Supplements are also available, but you should consult your doctor before taking them regularly. You only need a very small amount of copper to be healthy (the total amount of copper in a healthy human body is only around 75-100 milligrams ), but it does play a very important role in metabolic and immune function, neutralizing free radicals and possibly even reducing some of their harmful effects You can get copper from organ meats, leafy green vegetables, and cereals. That being said, too much copper can cause it to act as a pro-oxidant in your body, and in larger quantities it may contribute to the development of Alzheimer's disease. As such, you should exercise caution and be sure to check with your doctor before increasing your copper intake. Vitamin C increases your white blood cell count and enhances the cells' effectiveness. It is also an antioxidant, which means that it prevents the destruction of existing white blood cells. In addition to supplements, you can get vitamin C from oranges, berries, and most citrus fruits. For adults, tolerable upper intake levels of vitamin C are about 2,000 mg . Vitamin A is also an antioxidant, and helps your immune system to function more efficiently. In addition to supplements, you can get vitamin A from carrots, tomatoes, chilis, and squash. Vitamin E, like vitamins C and A, is an antioxidant, and is also beneficial for your skin and eyesight. In addition to supplements, you can find vitamin E in olive oil, nuts, and some fruits and vegetables. Echinacea, ginseng, aloe vera, and green tea are all said to boost your white blood cell count. Selenium is found in tuna, beef, and Brazil nuts. If you have a weak immune system, you may need supplementation. Colostrum powder containing immunoglobulins is a convenient option since it is available over the counter (without a prescription) in the form capsules for oral consumption. For most people, a month of consumption is adequate every five years. If you have an especially weak immune system, you may need intravenous injections of immunoglobulins (polyvalent IgG antibodies) extracted from donor human blood. This is always by a doctor's advice and only if you have primary immune deficiencies, autoimmune diseases, severe inflammatory diseases, or acute infections.
Summary: Be skeptical of "immune-boosting" products. Increase your intake of Zinc. Make sure you are getting enough copper. Get enough vitamin C. Be mindful of your vitamin A levels. Take vitamin E. Try other natural remedies. Consider colostrum supplementation. Talk to your doctor about immunoglobulin injections.

Problem: Article: If an emergency does occur, it is important that you know the correct way to act. All safety and emergency procedures should be discussed at the beginning of the school year. In addition, relevant safety measures should be reviewed before each experiment. If you are unsure about a specific process, ask your teacher so that you will know exactly what to do. Immediately after a spill or breakage occurs, it must be reported to your teacher. No matter how small it may seem, your teacher needs to know so that the proper cleanup procedure can be followed. Broken glass can have sharp edges that can lead to cuts so handle it with care. It must be disposed of in a special broken glass container. Never try to clean up a chemical spill without consulting your teacher first. Do not wear bulky clothing as this will be difficult to manage and may come into contact with a flame or chemicals. Roll up your sleeves and keep long hair tied back. Wear shoes that are closed-toe, low heeled, and cover your entire foot. Wear clothes that cover your whole body, such as long pants or a long skirt. Jewelry and contacts should not be worn in the lab. When working in a science lab, you must always wear a lab coat, gloves, and protective eyewear. The lab coat will protect you from chemical spills and gloves will protect your hands when handling chemicals or bacteria. Eyewear should cover both your eyes and the sides of your eyes to protect from splashes. Disposable gloves of latex or nitrile should be used and removed before leaving the lab. Also, make sure to use tongs or protective gloves whenever you are handling something that might be hot. It can take a while for chemicals to cool down, so use caution. Familiarize yourself with the location of any and all safety equipment which may be available, including the fire extinguisher, first aid kit, and the eyewash station. If you have access to an emergency shower, know where this is located. You also need to know where the exits to the room are found and follow evacuation procedures quickly and quietly if needed.
Summary:
Know about all safety procedures. Report all spills, injuries, or broken equipment to your teacher. Dress for lab work. Wear proper protective equipment (PPE). Know where to find safety equipment.