Light Requirements for plants
(adapted from forum post)
Here are 10 commonly available plant species based on light levels. All light should be full spectrum, as remember, you're simulating sunlight.
HIGH LIGHT (4+ watts per gallon)
Cabomba sp. (all species)
Elocharis sp. (Hairgrass)
Myrophyllum (all species)
Rotala macranda and wallichii
Limnophila sp. (all species)
Nymphaea and Nymphoides (water lilies, lotus)
MEDIUM LIGHT (2-3 wpg)
Aponogeton sp. (all species)
Crinum natans (both forms)
C. cilata, undulata, wendtii, willisii
Echinodorus sp. (all species)
LOW LIGHT(1 to 2 wpg)
Anubis sp. (both common sp.)
Vallisneria sp. (all species)
There are several plants that are what I call 'tweeners', that is, they can be kept in low to high light. Riccia fluitans is an example. Floating, it can thrive in low to medium light, but can be secured to rocks, driftwood only in bright light. The Sagittaria clan will grow in any light, low to high. All the floating plants do well in nearly any light, especially the last low light plant; duckweed :) Also, the Hygrophilas are usually happy from medium to high.
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