Well cutting a very long story short : I split up with the ex and had to leave my greenhouse for a few weeks while the dust settled, it was winter, she unplugged the heating as revenge and i lost a few prized big L.koehressii , my best L.diffusa and fricii plus many other mid sized plants and some rare and valuables like Aztekiums, Astrophytums blaa blaa blaa Sob sniff (Wipes teary eye), also following this split i had to house my surviving plants in an upstairs bedroom with nothing but a small window facing north for nearly a year until i got a greenhouse again and this resulted in a nasty spider mite attack on a few plants including a 13 rib L.fricii and some very hard to obtain Swobodiana and kubesai types
They on the road to recovery now but it has set them back a lot but the growth was good this year and some even flowered so i may have seed available soon if pollination worked.
Regarding Hermetic Germination:
You will need, Very small pots i use 2" pots, a jam jar with lid, suitable growing medium for your seeds, seeds and very important - Armillatox (a coal tar based anti fungal soil steriliser now sold as outdoor cleaner), Available in the US as of recent and also in the UK. So water the soil with a 50:1 dilution of armillatox sow the seeds into the now sterile soil and then stand the pot on the jam jar lid and cover and screw down the jam jar onto the lid , label the jar and place in a warm place away from direct sun. the jar should steam up if hot enough. if the soil seems to start to dry out then check the seal on the jar and water again with armillatox. If the armillatox has done its job then the seedlings wont need watering for many months and no algae or fungal problems should arise due to the sterile conditions inside the hermetic jar . The pllants will need potting on as it gets too cosy in there