[chemicalcomfort]

so wait you're saying that you've successfully grown weed before? I somehow doubt that given what you just described what you are doing now.

so many things i would consider wrong.

1) Some crazy 40 watt reptile bulb? definitely not suitable for growing even one, much less three plants. Do you even know what kind of spectrum it is?

2) tinfoil as reflective material? that's a no no.

3) growing multiple plants in the same pot. gonna cause a ton of problems. namely they will become competitive and at least one will likely become dwarfed.

4) they're growing really tall because you don't have nearly enough light and they're stretching, dieing to get more light. You definitely shouldn't need a support system that early. Typically the only time when support is used it when either a) buds get to big for the stem to hold upgright b) whilst training it, you broke a branch.

5) over half of them curled up and died most likely because of your miracle grow soil and lack of light. if you don't completely re-do your setup soon, i doubt any will survive to flowering, much less harvest.

Honestly it'll be a miracle if you get one plant to flower. Do some reading and research and figure out what it's really gonna take to grow some decent bud.