[GothicGroucho]

I have kept cryptocoryne lutea for several years and it has grown readily in my aquarium. Sometimes its leaves are a deep green; sometimes they are more of a mottled greenish brown. I imagine that the difference has to do with how much light the plant is receiving, but does anyone know what the correlation is? I.e., does more light tend to the dark green or to the brownish-green?

 

[GothicGroucho]

I don't know with that specific Crypt, but with most, they get more color the more high tech you go. So more nutrients and light will get you more color. and by more color I mean whatever the other color is than green.

I put in some Bronze Wendtii Crypts. they went in mostly green and all the new growth is redish brown that I expect to go bronze.

Thanks; so you think that the browner color comes from more light, rather than less?