Ecology of the Planted Aquarium by Diana Louise Walstad

Author:Diana Louise Walstad
Language: eng
Format: epub
Publisher: Echinodorus Publishing

Many aquatic plants could not survive in nature without the CO2 provided by decomposition. Water in equilibrium with air contains only about 0.5 mg/l CO2 [14]. Yet, many aquatic plants require much higher CO2 concentrations. For example, when CO2 levels were less than 36 mg/l, the moss Sphagnum cuspidatum was found either dead or dying [23]. And Callitriche cophocarpa and Ranunculus peltatus were found to be limited by CO2 in their stream environment containing 5 mg/l CO2 [22]. Because these species cannot use bicarbonates, they depend on the CO2 released from decomposition.

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