Orion f1 in a spacebucket

So this week started off a bit of a fucking mess lmao, after asking here a bit about the yellowing leaves/spots other growers thought it might be a case of nute lock and cos cash is tight rn I can't get a ph meter yet, so I figured I could add about 2ml of apple cider vinegar into my water cos I looked up the ph levels of tap in my city and it came up quite high at around 8 ph. But yea somehow that seemed to have worked cos after not checking up on her for a few days she had grown quite a bit. So yeah I think I'm gonna keep giving her that 2ml until the end of the month when I can get me some proper ph up n down and some strips to measure the ph, still I would highly appreciate any tips anyone got for me. Oh yea also cut a couple of the fan leaves way at the bottom cos they was looking kinda dead, hope that ain't gonna come bite me in the ass in the future