new growing

This is my second week in to growing my plants in a tent under a 600w light. here is a look. new this so im open to advice.

Plant looks real healthy bro! How long have you been growing it all together? Little more info will help myself and others give more accurate feedback. Btw welcome to Riu

2 weeks from a large clone? Those are large.

I see purple stems, and petiole. Pic-1,Pic-4
Pic-3 Your leaves are really dark. there are some purple on your Leafs. Pic-1 shows the same thing, but at the bottom of the plant.
Pic-2 got some (taco) leaves going on. Leaves folding along the mid rib. You could back the light off some for this plant. Pic-2 unless it's the light I can see some leafs that look like a Magnesium deficiency going on.

Cold/warm soil temps can cause nutreint lock out.
to much water can cause nutrient lock out. Your plants don't look over watered.
pH of your water. pH of your soil can cause nutrient lock out.
to much of one nutrient can cause a lock out of another nutrient.

IMO- over all they look decent. little tweaking and they'll be really good.

Here is a picture of the plants when I got them two weeks ago.

haven't gave them nutrients yet. what are the best ones? Also I have some seeds from Jamaica that have grown really fast ill post pictures a little later thanks for all your help and support.

Your plants are an indica-sativa hybrid from the leaf shape. They are in full veg state now and should be shooting up at a rate close to an inch a day. Now you have to make a decision. You can either put them to flower now and expect them to double in size while flowering. This is called stretching. You need to keep an eye on that so you don't end up with an 8 foot plant under a 7 foot bulb. Or you can transplant into larger pots and veg another 2 weeks. That route will take more time, about 2 weeks, but result in much larger plants and yield. Up to you. Good luck, BigSteve.

Here is a picture of the Jamaican seeds about a week in!