It is unlikely, however that a healthy live shrimp will be eaten whole by another shrimp or starfish. Invertebrates should be fed more frequently in smaller amounts than fish. Try to feed only an amount that can be consumed in the first thirty to sixty seconds. When setting up an invertebrate tank remember to include live rock, because some invertebrates feed on the parasites that grow on the live rock. There are a few basic needs that if met will ensure that the fish are cared for properly. The most important need that any creature has is the need for food. This is not different for fish. It is important to mimic the type of food that a fish would typically eat in the ocean. These foods can be purchased in flake, tablet, or frozen forms. Brackish water is more difficult to maintain because it is a mixture of both salt and freshwater. In the wild these fish live in areas where ocean waters meet streams or rivers. The Albemarle Sound is an example of brackish water. The same general type of equipment is required for brackish water and saltwater aquariums as fresh water. This will cause excess build up of toxic chemicals and can kill your fish quickly. As the water in your fish tank cycles through the nitrogen cycle, you may notice that is becomes very cloudy. This is a normal process and should clear up in a few days. Do not add any new fish until the water is crystal clear again. This is especially important in new aquariums that lack nitrifying bacteria. Test the water P.H. every day within the first month. Watch the tank for cloudiness; if the aquarium becomes cloudy, it may be necessary to add a clarifier. Monitor the fish for signs of stress or illness. A healthy fish will be swimming regularly. The water from the bag could throw off your perfectly regulated water, as well as introduce new bacteria to the aquarium. Watch the fish carefully for signs of stress. Stress causes illness in fish. Monitor their activity levels. Inactive fish or fish hanging out near the surface of the aquarium indicates stress.