Yellow Tips/Burns on Seedling..pics..

Hi guys, thanks for taking a minute to check out my thread.

Basically first grow, got three auto fem PE seeds on the go, roughly a week old, slight concern however as one has yellow tipped leaves and and the other is growing a fair bit slower..

Set-up is 600w hps 3 ft away, grow room is 2.5ft by 2.5ft by 7ft, not watering them much just a bit too make sure soil is a bit moist (also have clay balls/hydroton) and on a lighting time of 20-4, two fans, one for fresh air intake and one just to keep air circulating, temp at 25-30c and humidity at 40-45%. Pics included so hopefully abit easier to give advice back.

much appreciated! x

What kind of soil? it may be too hot.

Definitely looks like nute burn. Are you feeding it anything yet? If not, like he said- your soil may just have too much fertilizer in it.

Taviddude said:

Definitely looks like nute burn. Are you feeding it anything yet? If not, like he said- your soil may just have too much fertilizer in it.

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thanks for the responses guys, soil has no nutes in it and i haven't fed them yet..

The hps 600w light is a bit extreme for seedlings due to them being baby's it either to hot or too close to the little girls better off with a veg light hps 600w have more of a red spectrum of light for the flower stage of growth you need a blue spectrum light ie veg light to encourage root development and vegatation rather than wat ur using at the moment! Don't get me wrong it will still work but u need to expect some casualtys due to the dry heat and type of light ur using hope this helps bud

thanks bro, was considering buying a decent cfl today for vegging, would you recommend the plants wellbeing and development will be worth it? genuinely interested in growing as a hobby so could maybe even set up a different room (one for vegging and one for flowering but seeing as my first grow is auto wont be necessary!)

Most big box stores have street night lights that work really well for cheap.

rawgit said:

Most big box stores have street night lights that work really well for cheap.

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thanks forthe input dude, whats a big box store? (maybe goes under a different name in Britian..)

Are u from the uk mate? I am! the best veg lights are t5 fluorescent grow lightis have 5 on each level a cloning rack for all my clones and babies and they do just fine! Ideally u want to have 3 rooms nursery, veg room and budding room that way u can maximise ur turn over by having a pull every 8 weeks or like me have four different grow opps all at two weeks intervals that way u have a pull every two weeks lot of hard work but it's worth it wen they start rolling in

Also with the t5 grow light u can have it right down on the canopy without burning the lady's also helps provent the plant from stretching to much to the light that way u have closer nodes and eventually more bud sites rather than a long skinny fucker that just fall's over u need a dense canopy with good stems to hold more buds

Look at this site for more info greens horticultural