Mold, spider mites, an actual spider??

Damn that's a serious case of spider mite infestation. You could try to clean everything (the whole plant and underneath the leaves) with a cotton pad soaked in alkohol/water solution this will kill the spider mites. You could also use neem oil, rosemary oil or peppermint oil in water and then u spray the whole plan but u also have to remove the webs. In every case u have to put ur plant in 'quarantine' so none of the others get infected (check the leaves, also under them very carefully and check ALL of ur plants wirh no exception). The easiest you can do is get rid of the plant and also the risk it carries. You need to clean the whole environment to make sure the spider mites wont come back and fuck up the current or next grow. I wish you the best of luck these little shits are the worst I had them while growing my Yuhbary a couple months ago because I took her in fron outside and so I brought them into my indoor space. I got rid of them but it was annoying and not even that many of them. At this current stage you might as well consider letting go and kill the plant as sad as it is.

100% my spirit animal, definetly unicornspider webs

Wipeout, will solve all you problems. This has almost got away from you. Sooner the better. Spider mites indeed

spider mites, their webs look extra thick though, wonder if its catching some fine dust. If its on one plant it is likely on the others. You will want to look into bud washing for end of harvest. By the time you see webs at this level it's a infestation. The spotted patches on the leaves are also another giveaway. white freckles. They will be in the webs and or on the underside of leaves. Lots of egg shells as well I bet, use a magnifying glass and you should see them if your eyes are not 20/20. You can also go onto google and type in "two dot spider mite cannabis" and it will pull up a lot of reference points in its image search. Very hard to kill without using pyrethrum or something like it, and you don't want to spray in flower :( Some products say they are ok to spray in flower but I don't fully believe them. I have used a Isopropyl Alcohol wash before with some success "not cannabis plant", however that will hurt your plants and dissolve away any active trichomes. also it stinks and you need a vent hood or to do it outdoors. Next grow try and get some IPM "integrated pest management" like pesticide sprays in veg, or predator bugs that roam your plants and eat the mites.

i would trash or burn her with that many webs on the flowers you should probably get some predatory mites to prevent a spider mite infection on your healthy plants good luck

Damn spidermites.

100% spider mites. It may be too late to save this plant. Put it outside and hope for the best.

That’s typical spider mites :( would even say it’s to late to save her as much as it has spreaded already, just make sure before using the tent again to clean it super super tidy as those can hide everywhere.

That looks like spider mites. Good that you separated her. Cut off any new sightings of the pest, maybe increase air circulation in the tent and watch the humidity levels to avoid further problems. Good luck!