Perlite...
of sorts... yes.
it just happens to be in the wrong place. ie around the soil instead of inside.
your perched water certainly evaporates faster with a fabric pot.
Then use the old rootin tootin double pot in a pot method. Let the roots grow through a 1-2 gallon smart pot, Planted in a bigger smart pot
Bigger is always better. The extra soil becomes the wick. A bottomless smaller pot can be planted in a larger pot bringing soil up the sides and increasing height. Two zones are created. Alternate watering insures one zone is always wicking while the other zone is teasing the roots over. Roots follow the water.Then use the old rootin tootin double pot in a pot method. Let the roots grow through a 1-2 gallon smart pot, Planted in a bigger smart pot.
But really the only time I had trouble, In this regard was when I had too much castings of questionable quality, hydro shop wiggle worm to be exact. Other than that one time, big pots watered once every three or four days has worked well. And now I'm using homemade castings and compost, it's coming together nicely. I think that oak leaf compost's texture helps too. Not that I can't learn something here though........scrappy
the wick works because of water's properties:
cohesion
capillary action
diffusion
unlike a straw, a wick will work without gravity. the longer you make it, the more water it can move.
Bury it in the ground, and the wick can work in reverse if the weather gets very dry.