Growing Living Stones at 63rd Parallel North

in november i was supposed to increase the dry periods between waterings. i did water and fertilize on the 5th and on the 16th of november but i forgot to water on the 27th. therfore my living stones experience a 16 day gap between the last watering in november and the first watering in december. during this month i also reduce the daylight hours to 11 hours a day. i also spray the monilaria plants once during this month as a preventative measure as they have started to grow new "bunnies". i have identified the monilaria plants as risk plants because they have a lot of crevices, drying sheets and asymmetric form in which the mites might hide in. this month i also notice that the argyroderma plant and my lithops plants have begun splitting. the conophytum plant doesn't seem to show any change but it has a couple of cracks on its surface, the remnants from overwatering.

i watered and fertilized my living stones on the 4th and the 12th of august. i do not rememeber why i have been watering so sparsely. i do however have a notification on my calendar to water the living stones on the 19th of august although i have no written note to prove i did do that. it is possible i forgot it entirely or i decided to see if i can spread out the watering now that my seedlings are about to turn 1 year old.

on the 4th of july i water my conophytum plant and begin increasing the daylight hours. on the 6th of july i notice that my conophytum plant has a tear in the middle. i am afraid it is almost bursting because of too much watering. i also increase the daylight hours and the plant lamps are now on for 15 hours. on the 7th of july i water and fertilize all of the other living stones except my conophytum plant. on the 14th and on the 21st of july i water and fertilize all of my living stones including my conophytum plant. it has survived against all odds. on the 26th of july i water and fertilize all of my living stones including my conophytum plant. i also record the temperature indoors + 24 °C. this summer's highest temperature indoors has been + 29 °C.

i water and fertilize my living stones on the 7th of april and notice that one of the conphytum plants has dried up and died. i watered the living stones just a week ago but it clearly was not enough. on the other hand both argyroderma plants are changing their leaves the second time. on the 9th i transplant the last living conophytum plant to a smaller pot. i realize it's too early but the plant is too tiny compared to its nursery pot. before i transplant my conphytum i remember to rinse the pumice. at this time my conophytum is also finally changing its leaves for the second time - its second set of true leaves. to me the conophytum calculus seem the most finicky of the bunch. only one out of ten has survived this far. i keep the photoperiod at 12 h/day during this month. as i receive guests this month i fiddle with the timer to keep the lights on during more pleasant hours such as 10 am to 10 pm versus 7 am to 7 pm. my guests sleep in the living room so i do not wish to dist...