Not sure who you're addressing but I'm here so...
I grow mine indoors under lights with hours that mimic the sun. Planted in a mix of Napa Floor Dry diatomite product #8822 (interchangeable with Shultz Aquatic Plant Soil/Turface a baked clay product but way cheaper), Cherry Stone Quartzite Grit size #2 from the chicken feed aisle for soil weight/varied size and finely shredded coir or peat (maybe 10%) which is just enough to bind these minerals and keep it from sluicing out of the pots drainage holes but not enough organics to retain moisture beyond the 3rd day.
Water pours straight through my mix and the Shultz clay or Napa diatomite (whichever I've used) is entirely BONE DRY in
2-3 days. I water the plants once every 5 days or so in summer or once every two weeks if I forget-it's OK to forget occasionally and then the next watering they just balloon up it's fun to see!
I try to fertilize with Dyna Gro Bloom Formula (3-6-12) every other watering since the mineral substrate I use holds almost no nutrients of it's own. Think of it as a sort of "Orchid mix for Succulents".
Overall Stapeliads grow rapidly for me on their indoor shelf. If yours do not need repotting after a good summers growth then I would suggest that you dig it up and check the condition of the roots. The roots may be dead if you have a peat based soil mix that stays wet too long. It may be infested with root mealies who will never be seen until you dig it up and inspect the roots and base of the plant. The root mealies look like white powder. Also watch for them above ground as well looking like tiny pillbugs covered in white fuzz. Both cause growth to slow/stop eventually the plant succumbs and "melts". If it's not infested repot it in a fast draining mix that doesn't stay moist more than a few days.
If you do find them wash off all the soil and soak all parts of the plant and roots with a mist of rubbing alcohol and let the plant dry on a shelf for a few days, then mist it with alcohol again. Then repot in
new pot and soil in dry soil mix and allow to settle a couple weeks (misting once a day is OK during this time) then water lightly at first and start watering as normal after a few weeks. For me watering "as normal" is to soak the pot slowly and evenly until water drips the bottom.
One sure sign mealies are hiding out is that the plant goes into "stasis" when it should be producing new growth. This is prime growing/flowering time for these plants so if it's not doing much I'd be suspicious. New cuttings do not always flower the first year but should do so the next year and certainly by the 3rd year. But once they get roots they will grow easily if they have water, heat (my day temps are 85-100*F and nights 60-80*F) bright light and not too moist soil.