So I'm probably going to make a lot of you shake your heads, but I'm in no way an experienced gardener... I've always been the "take some seeds out of whatever I'm having for lunch and plant it" kind of person. Usually I've been quite lucky, having never to put fertiliser or anything on my plants (only ever cherry tomatoes and occasionally strawberries). However, I planted the seeds of a store bought roma tomato and have about 12 little plants... we planted the seeds a little over 2 month ago and I'm a little puzzled as to why they're only about 6" - 8"... I don't know how long it takes from seed to harvest (I googled and it said 80 days) but it's not looking good. We put a liquid feed on them a couple times a week, as they had really scrawny stalks and it seems to have helped them thicken up. They get watered every other day, because otherwise they get sodden. I should mention that our plants are indoor, as we have a large unused bedroom that's empty, and it faces the sunlight with a large window. So acts almost like a greenhouse, (we can't plant them outside, as we have a city back garden, so there's no room) and they don't seem to be wilting or yellowing, just taking their sweet time. Any tips on speeding up or any potential problems?