I am trying to find answers to my questions , sorry for the English it's not my native language.
So let's start with my concern (don't know in fact if it is really a problem...).
I have created four month ago a "mini terrarium" for four Drosera Prolifera (bought from the same place): 90% of blond peat and 10% of sand, 10W lighting (9-10h per day), temperature is approximately 22-23°C.
Everything was doing well until one month when two plants began to turn red and their leaves have fallen off (picture below is more talking).
So my question: is it normal? is there a problem with the environment? as they changed color, I thougt it could be a lighting error (too strong? too much?).
The two other plant are actually "normal".
If you have any idea that could help, that would be great.
Thank you in advance.