Lastly, check that the pump and filter are functioning properly. Weekly Cleaning Routine Weekly maintenance is necessary to keep the tank healthy. On a weekly basis, any waste should be removed from the surface of the gravel at the bottom of the tank. Using a siphon tube will accomplish this. If water is removed during this process, be sure to replace it and keep the water in the tank at the same level. As you can see these specifications are much more forgiving than those for certain tropical or marine fish. Guppies mature quickly and usually only grow to be about one and a half to two inches long. There small bodies and feathery fan like tails add a lot of interest to the tank. They are just fun to watch. They will grow vertically and sprout shoots at the joints of the leaves. When these shoots grow to be a couple of inches, it is time to cut them and plant them individually. Live plants may be kept in aquariums alone or with fish. The plants may even be used as a food source for some species of omnivorous fish. If you are using a live plant that is primarily a stem plant, try to remove the lower leaves. These low leaves tend to not get the amount of light needed to remain healthy. The use of live plants will definitely help in creating a masterpiece aquarium that is pleasing to the eye and is a happy and healthy environment for your fish. Remember not to leave the light on for more than 10 to 12 hours a day as it may promote algae growth. After adding some snails or crabs, wait another 2 weeks before proceeding. Now at week 6, you will add your first pieces of coral. There are many types of coral used in saltwater coral aquariums. Some of the most common are Button Polyp, Yellow Polyp, Hairy Mushroom Coral and Bullseye Mushroom Coral. The water should have a temperature in the middle to upper seventies and the pH should be neutral. This is usually the same set up and water balance you will use to house other fish as well, so it should not be a major concern when you add your catfish. Catfish are known to be somewhat goofy and comical, but this may depend on the species of catfish you have.