Coldwater Aquarium Set-up and Care As the hobby of having an aquarium becomes more and more popular, it should be noted that the easiest aquarium to care for and set up is a coldwater tank. As the name suggests, coldwater tanks require no heating set up. This cuts costs when setting up your first tank. Guppies are hardy fish that can adjust easily to minor fluctuations in water quality. However, don't allow these fluctuations to become common practice, as they do cause some stress to the fish. The water temperature in an aquarium for guppies should be kept between seventy two and eighty two degrees. They soothe sick patients at doctor's offices, and entertain small children while their parents are shopping at Nordstrom. When considering adopting a family pet, think fish. They are a good compromise when your children are eying that puppy in the window of the local pet store. Aquariums need little care in comparison to cats, dogs and even birds. How to Care For Aquarium Fish An aquarium is perhaps the easiest type of pet to have. There are some basic steps to caring for fish once the tank is established. There are things that should be done daily to care for fish and some things that need only be done weekly or bi-weekly. Daily maintenance of an aquarium is fairly minimal. They are quite comfortable in temperatures from 68 to 80 degrees. However, they should not be exposed to rapid temperature changes. You might want to let the filter run in the new goldfish tank for a day or so to filter out any chemicals or dyes that might have been left on the gravel and decorations that you just added. If you are using the included florescent tubes for lighting, it may be better to place the coral closer to the surface. This species of coral prefers low movement of the water. Be sure not to place it in any direct current. Doing so will cause the coral's vesicles to remain closed. This will eventually result in death.