Hello all. It's been exactly one month since i dropped my seeds in water. My little girls are in one gallon pots now, and have been topped once. They now have side shoots branching out, and I'm thinking about topping those, too. Should i wait until the 4th node on side shoots before topping them, same as the main? Also, sometimes my plants get really dark green, and i mean dark. Almost bluish - green. But other than that, they seem to be fine. Is this normal, or should i be concerned?

so, i have a 3 gallon spray can that i use to water, and honestly, i've been using it since they were planted and that's been one month. only used about a gallon and a half of it. i could be wrong, but i can't imagine how they could be over - watered. one month, used approx one and a half gallons of water... i did pour it out today, as a matter of fact, just to get new water in it, ph it, and cal mag in it, idk.