Many freshwater hobbyists with brightly lit planted tanks will report that they rarely have to clean algae off the tank walls. Once the bright light system is well established with plants the algae should no longer be a problem. The addition of a small ultraviolet sterilizer to the filtration system will eliminate any persistent green water, but thriving live plants will do the trick just the same. In some cases, the nutrients the algae may be thriving on may be coming from your tap water. Green water is caused by single-cell algae that are suspended in the water column, thriving on nutrients in the aquarium. Green water algae bloom will sometimes occur on aquariums with bright lighting systems. In some cases, the algae bloom may go away on its own after a month of a new cycling aquarium. Once live plants have established themselves, they will start competing with the algae for nutrients. It is always best to start with fast-growing plants or add fast-growing plants when the aquarium has an algae problem. Algae growth will often be excessive at the beginning of a new aquarium until the tank cycles. Excessive algae growth is not caused by bright light alone, it is caused by excessive nutrients in the aquarium water. Algae are a natural part of the aquarium. The plants on this list all work in Discus tanks, and Ive made sure. Tropical fish and plants available for aquariums are from equatorial areas and typically receive around 12 hours a day of light throughout the year. This makes it unnecessary for hobbyists to make adjustments on complicated timers for the seasons. For these common community aquarium fish, a simple timer will keep the lights on and off at the same time every day.Īquarium specimens that hail from more northern or southern areas will need more or less light depending on the time of year, so fish keepers should consider seasons when switching from day to night lighting. Also if the lights are to be on in the evening for the viewing pleasure of the family, the tank should not be put near direct sunlight, but allowed to be in the dark for approximately 12 hours a day or more.įreshwater hobbyists often worry about adding a bright light to their aquarium and think it will cause an excessive algae outbreak. For a planted aquarium, between 82F and 84F should give you plenty of plant choices. The first and most obvious advantage of aquarium plants in a discus fish tank is the aesthetic value displayed by the unmatched beauty of the two. These night lights, or moonlights, as they are called, allow the fish keeper to observe nocturnal behavior. To mimic the light available in a species' habitat, aquarium owners can use day and night lighting to approximate the light levels in a natural environment. The species that inhabit aquariums will be impacted in varying degrees by a constant level of light. Vladimir Krivoshiev / EyeEm / Getty Images
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