After a while you won't need the scales. You'll be able to know the moisture level by just tipping the
pot a few inches one way or another. Until then get a long, skinny stick, I use a bamboo skewer, and
use it to poke down through the roots. Pull the stick out and see if there is wet dirt on the stick. Same
thing as when mom would poke a toothpick into a cake to see if it was done. Water as soon as the
bottom of the stick is dry.
Any plant in a one-gallon pot should get watered daily. This time of year I water twice a day when using small pots.
Clones grow at vastly different rates when young. After a month they should be around 20 inches? I would water a
20-incher 16 ounces in the AM and another 8 ounces in the afternoon. Works for me.
Good luck, BigSteve.