Cultivation - Yellow leaves

[eight]

Hey,

SWIM has some problems with a rooted Salvia cutting SWIM got 2 weeks ago. It has 6 leaves, the bottom bigger 4 ones became much yellower and have a bit of browning around the edges and the smaller 2 got bigger, they are also starting to get a yellowish color.

The guy SWIM got the cutting from keeps the plants in a closet with a daylight lamp that works 24 hours a day, no special humidity settings and occasional fertilization. The weather there is hot (around 30C inside the house) and dry.

SWIM keeps the plant in a used fish tank with a cool-light lamp (also turned on all of the time) and with a bit of water on the bottom of the tank for humidity (the water doesn't touch the soil).

Any idea what may cause the plant to decline and how may SWIM stop it?


Some photos SWIM shot:
2 weeks ago

Today:

Notice that the photos from today are a bit darker than the first ones due to different camera settings and the leaves are lighter/yellower than they appear.

Thanks,

8

P.S. How is posting about growing a legal plant self-incriminating?