Okay :) should I start by taking them out of the bags and leaving them in the plastic container?

As long as your plastic container has a drainage hole. I do not think plants care if you grow them in fancy pots or recycled yogurt cups as long as you provide air, water, food and light. If you open your plastic bags gradually - stretching the process to several days - the plants will acclimate well - and you can keep them in small containers - until they are large enough to be moved to bigger pots.

I am a novice but from what I've read, I have to agree with Irina- they probably need more light. The leaves are reaching for sunlight. And make sure to rotate them at least once a week so they get sun evenly on all sides, that should help the lean. And maybe a touch more water?

Best of luck!

I just wanted to comment that you had an interesting idea to keep the little pot from tipping over - is that a rock you've used as a weight taped to the side of the pot?

Okay :) thanks irina_co and bears1mama. And yes, I taped a rock to the pot so it wouldn't tip over in the bag (which was getting annoying). I couldn't find anything else to weigh it down and the rock works well.

Ingenious!