n00b questions

So its been about 9 days in the new tent and they are starting to take shape. I have a few questions and everytime I try to search on this I get an error on the site so here goes.

1. When should I "feed" the plants? should I just slowly increase miricle grow in my water or should I get all kind of fancy stuff?
2. I want them to be about 4ft high so I should switch to 12x12 when they are at about a foot tall right?
3. I had some flying things in there today so I laid out some duct tape and filled a wine bottle about 1/2 inch full with a touch of wine with apple cider vinigar and a small banana peel. Think thats good enough??

Thanks for any help for the N00B

feed them when they show that they need to be fed, then follow a pattern to preempt any needs they should intend to display.

you can switch to 12/12 whenever you want to... it's really just preference...

those flying things can be defeated by yellow sticky pad traps...

1) feed them about a month after they pushed up through the dirt, feed VERY LITTLE to start with...1/4 what it says on the bottle. More is not better, more is a death sentence to young plants. Miracle Grow is known to be HOT and will burn virgin plants. Only fertilize once every other watering, you need that fresh plain water every other time to flush out fert salts that could harm the plant.

2) Flower them when they are about half as tall as you want them to be, remember that if they get too close to the lights it will burn the shit out of the main bud. In your case I would flower them at 16-20 inches tall.

3) Use the fly paper instead, it sounds to me like you made for some nasty smells in that wine bottle.

If the soil is MG, don't feed them for at least 2 months.