Dave....it maybe the fert you are using, it has no potash......i found a agrivet shop in market area that sells a lower blend that you said you were using, off the top of my head i think it was only about 12-12-12 but it also has mag and cal and zinc as trace elements.....my tomatoes have powered on since using it and branches are breaking under the weight of the fruit....well nearly
[DOUBLEPOST=1426032398,1426032205][/DOUBLEPOST]just as a side note, im having the same problems getting ripe fruit, she keeps picking them green and eating them as soon as they show a bit of colour :(:(