The first thing to do is make sure that the container in which the fish are being placed has water that is about the same temperature at the tank, other wise your fish will go into shock. When the container of water is ready, use the net to catch each fish one-by-one and place them in the container. Once all the fish are collected, be sure to place the container in a safe place where it will not be spilled. Since your fish tank is brand new, you might want to consider making partial water changes of about 25 per cent of the total water volume every few days for the first week or so. You can find Goldfish food at almost any pet shop. Make sure to purchase some when you buy your first fish. Feed only a small amount. When purchasing plants, make sure that they are true aquatic plants. Live plants should be pruned weekly. Dead or broken leaves should be removed daily. A live plant aquarium will require the same basic equipment needed for an aquarium containing fish. The basics are as follows. You will need a tank, some sort of filtration system, lighting and some basic cleaning tools. Just be sure to purchase an aquatic specific species. If you don't want the hassle of live plants, plastic is always an option. They have come along way with synthetic plants. In most cases the fish may not even notice the difference, unless of course they try to eat them. Once your tank is established and you are ready to add fish, choose your fish carefully. Your fish will enjoy having the light, so it is probably best to buy a hood that includes a light. Try to keep the tank out of direct sunlight when you choose it's position within your home. This will also add to algae growth. Once you have your tank set up and the water is stabilized, you may add your fish. Another cause of stress in fish is overcrowding. Make sure there allow about ten gallons of water per one inch of fish. Account for the full grown size of the fish, not the size of fish when it is purchased. The incubation period for most sickness in fish is about thirty days. So after about a month, if all is well with the tank and the fish seem to be adjusting well, then it is okay to introduce some new marine life.