5 purple punch + 1 pineapple chunk

If you don't see any pests with a scope under leaves or elsewhere, i'd look into watering habits. are you allowing it to dry between irrigations? if not you may have some rootzone issues that can cause stuff that looks like this. Allow 1" up top to dry. Irrigate so that entirity of pot gets saturated -- no dry pockets. Some runoff is inevitable, cast it off.

I would say you are having some ph issues. Looks like a zinc or magnesium lock out or deficiency. What are your ph levels going in and coming out on the runoff? I would check these and check your ph instruments calibration as well. If this is all in the normal range of around 6.5 then try adding some cal-mag additive will probably help I think. Hope this helps, Cheers💨