Hi everyone,

I'm new here and I don't often ask questions but I'm getting desperate to hopefully save my tomato plants. This is the second year I've started tomatoes from seeds and last year it seemed like such a breeze! This year I had to place my potted tomato plants in window sills to protect them from little fingers. I definitely made the mistake of closing the curtains at night (some are in our bedroom) for several nights before I realized that they were starting to struggle. Most of the plants downstairs are doing alright but there are a couple also struggling there as well. The plants upstairs are really struggling though (where the heavy curtains were drawn). The leaves are curling - at first that was it, but then the bottoms started to yellow and I've noticed purple under a couple of the leaves on a few plants as well. I've pruned off the yellow/purple leaves and have stopped drawing the curtains but I'm wondering if the plants will be able to recover and how I can help them. I have fertilized with all purpose miracle grow a couple times (every 2-3 weeks) and I live in Alberta Canada so these plants will be indoors for another 3-4 weeks. I've included pictures to give you a better idea of what I'm talking about and some healthy plant pictures as well. Thanks in advance for your