So I have two jock horror fems from nirvana growing. I started noticing rust type spots that are drying out and cracking. Also new growth is appearing burnt. Not all just some. Mostly in the middle of the leaves but somebody tips advice well. Also noticing holes a peaking on leaves. I did see one or two flying bugs. Small and black. I've used a magnifying glass and looked for bugs and see nothing of the sort on any leaves. Temp Osv about 73-79 all day and humidity is about 45. I planted on ffof sized with happy frog. After two weeks of growth I planted into just ffof. I haven't nuted yet at all. Been using spring water ph'd at 6.3-5 one plant is expoerincing the problems worse than the other. Pls help!!