When to begin feeding nutrients?

Hello ..

I hope someone can help me.. and im sorry i do'nt have any pictures as of yet, I have four seedlings all 3 to 4 days old and have been keeping them under a low wattage warm colour cfl at night and in my window during the day .... im hoping to mature them a little bit before i place them in my grow room, as i know natural sunlight is very beneficial... its an average of 28 degrees celsius in my grow room when im using my 250 watt Mh light, i also have a Hps light (400 watt) for flowering, and will be using Canna Nutrients when i begin to feed.

anyways the most mature and fastest growing seedling is 30mm tall and bent over but im not to concerned about this at the moment " i can stake them later", it has two small leaves growing from the first two cotyledon leaves and these are both 5 mm long... the seedlings are in rockwool which was soaked in Ph 5.5 water prior to planting and i watered with 40 ml of the same calibrated water again yesterday evening ... but im wondering now should i begin to feed with a dilute liquid nutrient solution already or should i just continue with watering????

Any input or advice? temperature is a warm room temperature at night and probably a little cooler during the day. and the rockwool looks visibly moist after yesterdays watering.

in not a pro, but from what ive read, u shouldnt give nutes untill at least the first set of true leaves have appeared ( usually about 2 weeks ). at this stage i would start them on 1/4 strengh nutes, or even 1/8 strengh and work it up. keep an eye on your ppm, they are still babys after all

ya, wait a week and a half or so. If you nute them now, they may go yellow and die off

I've always given my hydro plants food, and let them decide if they're hungry, whether it's a seed plant or cutting, and no matter how old they are, it's like a vegas buffet.

HTH

you could do what potroast says and you may be allright. i like to play it safe and hold back till at least a week if not longer for undeveloped seedlings.

the seed carries enougth nutes in its shell to get it to a stage where it has its true leaves ( not that fake ass imitation pair that show first ).

nute burn early on is a pain in the ass and many have lost there young this way.

if you have to use nutes, go light, to be honest i use superthrive from the start and it does seem to improve vigour without putting my ppm to high.

not trying to belittle potroasts opinion or information, this is just my 10 cents and how i go about things, enter with caution ha ha nature or nurture.

i use rhizotonic as well.

cocoxxx said:

in not a pro, but from what ive read, u shouldnt give nutes untill at least the first set of true leaves have appeared ( usually about 2 weeks ). at this stage i would start them on 1/4 strengh nutes, or even 1/8 strengh and work it up. keep an eye on your ppm, they are still babys after all

Click to expand...

+reps for you--------------two weeks is a great number.

DR. VonDankenstine said:

+reps for you--------------two weeks is a great number.

Click to expand...

thanks

Don't worry about differing opinions, because that's how we all learn, by comparing thoughts. You seem to be talking mostly about feeding new seedlings, and when I germinate seeds, I soak the rockwool cube in dilute nute solution before the seed goes in, so there are nutes available. And I use SuperThrive too, it's not a nutrient, it's a vitamin/hormone elixir.

HTH

everyone has a way of doing things. the other thing to remember is that differnt strains like differnt things.

different thangs for different strains!