I have these two auto flowers which have been relatively healthy their entire lives they are watered every 3 to 4 days and we’re pre amended with just a small amount of Gaia green all purpose and then again at 4 weeks with a half dose of bloom. They have developed these rusty spots on the leaves and now bits of them have begun to go missing. I don’t have tools to test my water ph however it is RO water and the one time I could test it was 6.3. Any help is appreciated I’ve been trying to decide among too many causes so I’m hoping someone will have had this before and know for sure. I also forgot to mention under the more severe brown spots the damage is like a smaller hole on the underside of the leaf in a few places at least so far.
