11-20-2006, 07:28 PM
Join Date: Jan 2004
Location: Soggy Central Mississippi
iTrader Positive Rating: 100%
Rather than call them shade plants, I would prefer to call them low light plants. Crypts, Anubias, and Microsorum fit in this category. These plants tolerate low light better than others. They can be grown in higher light but they must be given CO2 in order to do well in higher light. If grown with low light in a low tech tank without CO2 additions, they do well on the CO2 levels provided by the fish. If grown in a low tech tank with moderate to high light, and, if there are also high light plants, such as Vallisneria, Najas, Eigeria, Ceratophyllum, etc. present, they will fail miserably because they lose out in competition for CO2. They can die out completely if subjected to this kind of CO2 competition. One day you will peer through the forest of Vallisneria, or other high light plant, and not find them any more.