They are small rusty spots that seem to have started on the bottom level and have now spread up one.. other plants seem fine atm cant see any rust spots yet only flipped to 12/12 6 days ago only started to do the ph levels 4 days ago when i noticed the spots haven't giving it any nutes yet im also finding holes/chunk marks took out of fan leaves everyday theres a new hole/chunk took out off another plant. 4 outa 8 plants now have a hole or chuck took out of a fan leaf . any body ever had the seem problem? i have looked to see if i can find something that could be eating my plants 3 days i been looking i cant find anything? if anyone could help and point me in the right way dont wanna lose these