with using the mendo mix indoor if i want to fertilize every 2nd to 3rd watering (less frequent @ first, increase as the root mass and plant grows) i like to achieve some run off. If i were in saucers i would shop vac the run off so they aren't sitting in water.
I use Royal Gold Mendo Mix also but only with established plants. I start in Basement Mix then transplant into the Mendo Mix (7 gallon Geo Pot). I also have my mom's in Mendo. works great!
I use mendo inside from cuttings. Your picture looks like you need to soak it .
My method is lazy and simple.
5 inch pot veg till they are established . Something 8 to 12 inches. This takes me 3 weeks under T5's
Transplant to 15 gal of mendo.
veg a week, flip
Water completely with almost no runoff.
3 feedings with fish hydroslate, kelp.
Top dress with Fish bone meal.
Water all the rest of the time.
I also take rooted cuttings and put them in 5 gal of mendo mix .
Veg one week.
Feed once with fish hydroslate and flip to flower.
Water completely with no run off.
fish bone meal and phos bat at week 3 of flower.
Water only.
I kill it .
Well Its all about how long they will take to get going and I grow monsters in cages so I usually veg for 2 months. Now It will be a 20 day cycle. If they get to big Ill put em in early.