First Grow, Help/Advice?

C

Crystalcrazy

Member
I recently bought 5 femenized a.m.s(anti-mould strain) seeds from pick 'n' mix seeds; I planted them in peat pots which I surrounded in soil, so that I don't have to move the seeds at any point during their lives. I plan on finishing with 2 plants out of the 5 germinated, due to the grow room size, I will pick the 2 that are growing best and I will use them.

Here's the list of things that I have and can use(I'm limited to these, but I could buy things if that would be advisable):
20w CFL
30w CFL
2 red bulbs, small
Miracle grow
Tomorite(tomatoe fertilliser)
Humidifier
Peat pots
Small pot(20x50x20)cm
Aluminium foil

The space I have to grow in is approximately 45x75x90cm, I could grow them in a bigger space but it would be too open and not as much light may get to them, and it is day 10 since the girls germinated.

So I just have a couple questions:

When should I switch the light cycle from 18/6 to 12/12?

What NPK ratio fertilliser should I use during veg/flower?

How often should I fertillise/how much fertillser in 1 litre of water should I use?

Thanks for reading, hope you guys can help me out

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D

Doomah

Well-Known Member
Switch the light cycle whenever you want. Some people switch lighting in phases; others give the plant x hours of darkness prior to 12/12. Personally I phase it.

Keep in mind that as a rule of thumb some sativas can grow up to 3x bigger when you switch the light cycle. Indicas up to twice as large. Not always though, but prepare for it. Was never a problem for me because I paid close attention to when the roots outgrew the pot and tried to push it as long as possible before re-potting to discourage further growth (not sure if this has bad repurcussions, but seemed to work for me).

Ferts - use high N, low P/K for veg'. Continue using this for about 2 weeks into flowering stage then switch to high P, medium K, low N for flowering. Read up on all of this before you decide which nutrients to buy, and do not over-feed them. Follow the instructions on the bottle - use smaller concentrations of fertiliser to water if you're unsure, and increase the concentration gradually until you're certain there are no signs of nutrient burn. Also, it's best to stagger feeds by interspersing with normal watering (one week feed, one week water for example).

No need for me to go into specifics about flowering at this stage, as you'll hopefully have done plenty of research by then. Just give the plant what it needs and let it take its own time to grow.

Also, ideally you'll want more CFLs. Use 2 6400k CFLs to 1 2700k CFL when veg'ing, then swap it for flowering. Not sure about the red bulbs.

Good luck.

Edit: Just noticed you've got the exact same feeds as me. If the miracle grow is the blue stuff in a packet which you dilute with water then it'll be fine. I'm also using high P/K, low N tomato feed during flowering and my plant seems to like it.
 
jadeshecky

jadeshecky

Well-Known Member
its a good idea to get some pearlight (spelling?) to add to the MG soil, it tends to be on the heavy side. most people use 25% pearlight and 75% of the soil. or you could just go get a bag of foxfarm ocean forrest potting soil. it rocks! i use it from seed to weed. it feeds for 30 days too.
 
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