Aquarium Algae Control

The most common problem that every aquarium owner faces is the growth of unwanted algae in the fish tank. Many algal species are introduced through corals and rocks present in the tank. Algae growth in the aquarium is not at all harmful; it is normal and healthy to some extent. They supply oxygen and serve as food for the aquarium fish. However, an excess growth of algae becomes a nuisance to the fish, plants and other aquarium inhabitants. If left uncontrolled, it may change the water chemistry by altering the water pH and nutrient composition.

Aquarium Algae Control

Similar to plants, the growth of algae requires three basic factors, namely, water, light and nutrients. All these factors are available in the fish tank or aquarium, thus creating a favorable environment for algae. However, aquarium algae can be controlled, if the growth requirements are regulated in a proper manner. Some of the conditions that favor overgrowth of algae are availability of direct sunlight, keeping aquarium light on for a long period, high nutrient water and overfeeding of the fish. The control of aquarium algae can be accomplished after understanding the cause of algal growth.

Reducing Light
Optimum light condition is the most common cause of excess algae in the aquarium. When placing the water tank, make sure that it does not receive direct sunlight. In case of artificial lighting, it should be maintained at a low voltage and remained on for less than 8 hours per day. Doing so will help in controlling algae. You can make use of a timer to regulate aquarium lighting.

Feeding Less
Leftover fish feeds lead to increased levels of phosphates in the aquarium water, which in turn, promotes the growth of algae. Hence, feeding in correct amounts is essential for controlling algae. You should feed in small quantities, so that fish finish it within 5 minutes. In case of overfeeding, clean the remains as early as possible.

Water Nutrients
Regular monitoring of the aquarium water for nutrients like nitrates and phosphates is a basic necessity in order to control the growth of algae. The tap water is a rich source of phosphates, while the feces of aquarium fish contain nitrates. Changing water about 10-15 percent on a weekly basis will help in maintaining the aquarium with low water nutrients. However, while changing the water, ensure that the source from which you take water is free of excess nutrients.

Regular Cleaning
Controlling aquarium algae is less cumbersome, if done in the initial stages of algal growth. If you observe any algae on the glass, rocks, gravel or plants, clean them immediately. You can vacuum clean the gravel and prune the plant leaves where algae are present in order to get rid of algae.

Higher Plants
Introducing higher live plants in the aquarium will also reduce algal growth. The live plants will compete with the algae for nutrients. In fact, they will use maximum nutrients that are required for the growth of algae. Eventually, algae will be starved due to nutrient deficiency, thus helping to control their growth.

Algae Eating Fish
Another effective method to control aquarium algae is keeping the fish that eat algae. Some of the aquarium fish that feed on algae are Siamese flying fox, plecostomus, parrotfish, tangs and blennies. You can also keep limited numbers of crabs and snails to control aquarium algae. Make sure that the snail population is not increased, otherwise it may cause another issue.

Following above methods will help in controlling aquarium algae. These tips are more effective in the early stages of algal growth. Hence, having a keen eye to observe any changes will help in keeping the aquarium healthy and attractive.