My plants stems are redish purple with at the bottom of the stem green, they are only 2.5 in tall and this is my first time. Is this normal??? please help me out

Hey masterganga, I'm also into my first grow and had the same experience (see pics--is this what you're referring to?). Yes, I would say it's normal for several strains. That is the input I got from several growers. Good luck & keep asking questions.

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Genesis-1:29: Behold, I have given you every herb bearing seed, and every plant bearing fruit which is upon the face of the Earth. To you it shall be for meat.--God

the lights are about 2.5-3 inches away there 2 48 inch flourescent, the light fixture is hanging and then its surrounded in aluminum foil then at both ends i have 2 fans blowing air in. i was just reading and i'm scared it might be heat stress, i'm going to try to get some pictures up of the plants, the temp is around 90 degrees F, and humidity 45% if you could help me with an idea how to cool the area down that'd be great

Personally, I've never seen any exotics that didn't have red/purple streaks on the upper parts of the branches (yes, I know they exist)
If I had any, I'd trade you a green stemmed plant for a purple anytime!
I think it's a great sign the vast majority of the time.

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. . . oh, the crops are all in and the peaches are rottin' . . . the oranges are packed . . .

I have a setup that allows me to pump in cooler air from a crawl space beneath my grow area. I use a fish tank air pump and it works very well. It lowers the temp between 15-20 degrees.

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Genesis-1:29: Behold, I have given you every herb bearing seed, and every plant bearing fruit which is upon the face of the Earth. To you it shall be for meat.--God

that normal alot of strains do that one of my babies has a purple stock and its kicking ass

so u have nothing to worrie about bro

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i wouldnt be able to do that because i'm on a second floor across the building from the crawl space

What i had wanted to do in the first place was do something like RaginCajun420's setup in the 30 gal rubbermaids except i cant find 30 gal rubbermaid around where i live or the light fixtures that he had

You could stand there w/a wet/damp towel and fan it back and forth until it dries or, if you have a fan (I suspect you may) simply drape a well dampened towel over it so that the air passes thru the towel <<< 1950's po' folk A/C.

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. . . oh, the crops are all in and the peaches are rottin' . . . the oranges are packed . . .

a paper towel or a cloth?