Temperature/ Root Problem

Okay so this is my first grow and im so excited I mean who would't be. Im 4 weeks into veg using 4' 4 bulb T5HO FFOF soil and just started last week with 1/4 strength big grow. My bulbs at about 2"-4" away frow tops causes (at the hottest) 85 deg F but the top of the box is is between 77-81 deg F. I have tho 6" inline ductor boosters as the exaust ( one on top and one on the backside wall). The intake is just one of those 6" fans rated at 250 CFM (dont think it is but it works.) When the door closes the exaust fans slow down a bit causing me to think i need to at another intake. I have to also turn on 2 other single bulb T5 HO mounted horizontally that I am using for flowering due to what i've read on lack of light getting through the canopy to lower parts of the plants. This will also raise the temps a bit but the 4' 4 bulb T5 will be closer to the exaust causing the hot air to be drawn out faster. There is two 6" clip fan blowing on the tops and bulbs which is more than efficent plus exchanging air in the box rather well. Box is 2' x 4' x 4.5'

Is that temp too high on the tops?? Should I raise the light?

Plants look healthy and strong and within a week the roots filled up the 6" sq pot I transplanted them to after the 4" sq pot i started them in. a couple of root heads pealed out of the drain hole and turned gray and crusted up. I am not able to get to the garden store till tomorrow and want to know if these root tips will spring back to health when transplanted or if i need to cut them off.

When size pot should I transplant to I was thinking a gallon and a half sq pot.


Thanks:thumbsup:

Quote:

---

Originally Posted by xxxnick89xxx

Im 4 weeks into veg using 4' 4 bulb T5HO FFOF soil and just started last week with 1/4 strength big grow.

Is that temp too high on the tops?? Should I raise the light?

I am not able to get to the garden store till tomorrow and want to know if these root tips will spring back to health when transplanted or if i need to cut them off.

When size pot should I transplant to I was thinking a gallon and a half sq pot.


Thanks:thumbsup:

---

Are you also using Big Bloom with the Big Grow? I found out the hard way that Big Bloom is the catalyst for the nutrient solution and had major nute probs my first go with FF. Also, the FFOF soil has tons of nutes in it, I don't think you should need any added nutes for a couple weeks or so if they have only been potted for 4 weeks. Keep in mind to if you are transplanting into more FFOF soil that you will have more nutes available. Pay attention to what the plants tell you before you force feed them and throw the soil off kilter, it'll pay off later in flowering I promise.

Temps with high of 85 shouldn't be too bad. It's strain dependent to some degree, you may see a little stretch, but if it's your first grow, don't be too concerned.

I believe that once a root dies, it is dead forever. I don't think they regenerate after death, they just get replaced by other new healthy roots.

Final container size will dictate how large you can get these. Growing under fluoros your gallon and a half size sounds good to me. How long until you plan on flowering?

I havent used the big bloom yet but, now that you said that I realize its a must. Ya I was thinking maybe a 2 gallon pot because I have about 3 ft maybe a lil more to work with.

Also had a question when mixing the nutes......

I just started the 1/4 strenth Big grow, so should i be starting at 1/4 strength of Big Bloom and be mixing them in the same gallon of distilled water?

I was planning on flowering around somewhere in the next two weeks.

Why distilled water?

you can mix the nutes in the same gallon of water, but ALWAYS add them to the water and NEVER mix concentrates together!


-shake

used distilled water because i read somewhere it was good for plants. It is starting to add up would i be alright if i switched my water sorce to tap???

more than likely. tap water is usually better for your plants because it still has a lot of the micronutrients in it that distilled doesn't. these are not only beneficial to your plants, but required.

have you been using calmag+?


-shake

No I havent been should I be?? What is it a nute? I thought the big bloom and big grow have enough micro nutes in it.

the tap has calcium and stuff not the distilled read the newb stiky in the beginner section