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October, 1 year + 1 month

during october i water and fertilize my living stones every 10 days: on the 6th, the 16th and on the 26th. at the beginning of the month i still find webbing on the monilaria plants so i also spray with the diy miticide on the 6th and on the 16th.

i reduce the daylight hours gradually untill the plant lamps are on only 12 hours a day. i am aiming at 8 hours at winter solstice and at 16 hours at summer solstice but i began to wonder if one is too little and the other too much.

i read about the 34th parallel south (about the parallel of cape town) because i believe that the southern tip of africa has the most extreme light levels the living stones could possibly encounter in their habitat. well, their habitat is actually a bit more north from there in the namib desert but i think it's close enough for an approximation of the most extreme light levels. at the 34th parallel south the sun is visible for 14 hours, 28 minutes during the summer solstice (in december) and 9 hours, 50 minutes during the winter solstice (in june). i decide to reduce daylight hours only up to 9 hours 30 minutes by the winter solstice.
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