I’m new to marijuana in general and have only been growing for about 3-5 weeks. I started off with 4 seeds, 3 of them successfully germinated. One of them I accidently broke the root from the seed before it had time to pop up, the other two came up, one of them came up about and inch but the seed never came off of the plant, eventually the seed fell off and it dried up. So I am left with one plant. It seems to be growing at a fast pace and seemed healthy for the first few weeks of it’s life. It also germinated very quickly. But all the sudden on it’s second set of leaves the tips curled down a bit and they also began to yellow. Then the first fan leaves also yellowed a bit on the tips. The first leaves to yellow started to get bad so I clipped them off not knowing what to do. The fan leave that is yellowing seems to not be progressing so I left it nor did I want to clip the biggest leaf on the plant. There were also a few small brown spots on the yellowed leaves. Now the plant looks a little almost wilted and the leaves with the yellow tips are quite droopy. I’m just trying to save my only plant until I can clone it hopefully and get a few more to fall back on if I screw one up.
I’ve done a lot of reading online and I’ve narrowed it down to what I think might be the problem but like I said I just started so my guess is not something I would like to go off of; over watering or lack of air flow.
My medium is 50/50 perlite and peat moss. I am not watering it very often but I use a spray bottle to mist it every few days (I was misting every day) but I have cut water as I think I may be over watering. The pot it is in has some larger holes on the bottom and I poked smaller ones on the sides of the container.
Air flow is almost non existent as this is a closet grow and I don’t have money for a fan right now, the best I can get is opening up the window and the closet door which doesn’t produce much.
Also the stem seems to be very thin for how tall it is getting, if I mist the top of it the plant will tip over so I had to make an improvised stake.
Two other questions I have are,
When can you start cloning a plant?
And when can you tell what sex your plant is?
I really appreciate any help.