First time grow. Bubba kush needs help

[j4a2h0]

Hello this is my first grow. It is a Bubba kush plant about 7 weeks old. This is an inexpensive grow, my growroom is a small closet attached to my room under the basement stairs. It is in soil, under all fluorescents. Recently the small leaves on the large fans have been curling up.It is browning on the sides of a few of the old leaves, the new growth looks healthy. It is a small growroom and the temp has been between 63 and 67 degrees and humidity around 25, with a humidifier around 50. Not sure what the ideal humidity is for my plant btw. I havent really used any nutrients yet, not sure what is best for vegetation. Here are some pics of the leaves please give any info you can think of, or recommendations.

[sneakers]

Have you checked the various prolems guide sticky?

Also the nutrient definciency chart thread might help.

I'm not real sure about soil but I would guess they should have nutes by 7 weeks old unless your soil came with nutes and if so, that could also be your problem.

[j4a2h0]

Yeah, you're probably right. Anyone have any recommendations on fertilizers for the vegetative state?

[Mordecai]

Use organic ferts. And start with a mild dose and work your way up. Advanced Nutrients is a credible company who has organics available.

[Help_Needed]

There are a lot of decent brands of fertilizer out there. Your local grow store carries a number of them - Botanicare, Fox Farms, Advanced Nutrients, etc. What you're looking for is a relatively balanced ratio between N, P, and K, as well as various micronutrients. Avoid anything that seems badly out of balance, for example fish effluent, which, while fairly mild is mostly nitrogen and is lacking in P, K and micronutes.

If all else fails, head down to your local Walmart and pick up a bottle of Miracle Grow all purpose fertilizer. While it's not a premium fertilizer, it'll do the job. A number of growers have had success with it. Just be careful. It's very strong and can easily burn your plants.

[j4a2h0]

The large fan leaves that were losing their green have gotten worse and some of the other large old leaves are browning. Is it a good idea to trim some of the dying material off in order to stimulate new growth? If so what is the best and safest way to do this. Thanks, Jah.

[Ganja Guerrilla]

you can safely trim any leaves that show 50% or damage

what brand of soil are you using?

[j4a2h0]

I started with some miracle grow potting soil, but i would think that all of the original fertilizer is gone by now. I started this grow as an inexpensive attempt, but i wouldn't mind upgrading some of my stuff for a better yield. So if you have any suggestions they would be greatly appreciated. Also, should I trim the leaves or the entire branch. Once i find my camera i will post some pics. THanks

[Ganja Guerrilla]

I would transplant , run tap water over the root ball till ALL the old soil is gone, transplant, then water with 1 cup of water, leave the plant alone for a week and she will come around

[j4a2h0]

ok i have some pics. For the transplant, what type of soil should i use? Also, what is the ideal humidity? It stays about 20% normally, and up to 50% with a humidifier. Also, should i not trim it and see if the soil transplant/better nutrients help the older leaves. Thanks again.

[Ganja Guerrilla]

fox farms ocean forest or black gold are good soils, trim anything 50% or more damaged

60-80% veg - 40% budding

[j4a2h0]

Alright thank you, i will definitely look into that soil.