first grow, tweak it or leave it?

This is my first grow, I think I might be babying it a bit and I'm wondering if my "problems" are actually problems at all and whether I should be trying to fix them or just leave things alone.

As you can see, some of the larger leaves in the middle are yellowing and the tips on most of the young leaves are browning.

I was leaf feeding with seasol before, I stopped when the it started flowering. At that point it had one or two slightly yellow leaves, when a few more started to turn and the tips started to brown I added a low dose of slow release fertilizer and a weak solution of boric acid (I heard N was probably the problem with the yellowing and N or B deficiency were the likely culprits for tips browning). I realise that slow release probably wasn't the best choice, but I couldn't find a liquid fertilizer with a decent P content.

The pH is around 6.5

Should I be pulling off the yellowing leaves, or just let them fall when they want? Should I be trying to keep tweaking the nutes or would I be better off just leaving it to itself until I harvest...which brings me to my next question and the other two pictures.

Are these photos clear enough to identify when to harvest (I can see what I think are the white-ish trichromes)? Will photos like these show up the colour change or should I get a microscope?

I'm hoping to harvest in about the next 1-2 months, does that sound like a reasonable estimate given the plant's current state?

Cheers,

Mikey

It looks fine to me but has quite a way to go yet. You are probably in that 6+ week range as a guess.

Cool, I'll try not to stress over every little thing and just let nature take it's course.

When you say 6+ weeks, do you mean that is about how long until it is ready to harvest?

Plant looks slightly over nuted, from the seasol i would imagine.
You should be able to find some sort of liquid bloom fert with a high P and K from any garden supply store.
If you've added a slow release then it's best just to leave it for now and see what happens.
MJ grows to quickly to really benefit from slow release ferts.
I agree that you probably have around 6 weeks to go depending on environment.
Is this an outdoor plant?

Yeah, it is growing outdoors and yeah I probably did put a bit too much seasol on it :/

I did actually find one high P fertilizer that looked OK-ish, but it was supposed to be for hydroponics and the instructions looked like dutch to me so I went with the granules.

Next time around I will be a bit better prepared and I will track down the right nutes before I need them.

Nothing really wrong with using hydro nutes in soil as long as soil is not over nuted.