Geting yellow in start (Royal Dwarf and Royal crematic)

[terror4]

Hello everyone,

that my first Grow and i am in day 17.My plants turning yellow ph of soil and water 6.8 to 7.1.May i over water but the first set of leaf turning yellow before watering.

Till now i had this problems at day 4 and 7 the HM<20% and day 10 temp at 32c.

under 3 clf (2x40watt 6400k and 1x23watt 2700k) but i start whith 3x23 2700k!!!!

What can i do?

 

[namvet25]

Why do you have them in cups?Is there drain holes in them?What kind of soil areyou using?

 

[terror4]

Yes i have make holes and soil is that http://www.cultureindoor.eu/2587-platinium-light-mix-perlite-20l.html

 

[namvet25]

That soil has too many nutes in it for seedling.The soil and possible overwatering is causing your problem.Try and move them to larger pots and use different soil mix that doesn't have nutes in it.

 

[astronomy420a]

nammy is right on!:check:

 

[terror4]

thanks i will try it today, hope my babys live.
Thats be only for seeding or my soil not good for auto?

 

[namvet25]

Soil with added nutes is not good for autos.You need to control the nutes,so you can give them what they need and when they need it.

 

[terror4]

i realy dont know it and i am very sad about that.One way or other i start a new royal dwarf (my last one).
Also i have buy biobizz try pack(grow/bloom/topmax) i hope be good choice.

 

[terror4]

i move them in bigger pots.regular soil plus 30% perlite.Roots in all was like that

what sould i do from now?

 

[Waira]

:slaps: whoa! I second that-- Those NPK numbers are waaay to strong for seedlings,... I hate that they call it light, because that's bullshit no matter what plant you pot it in! ...good move Terror, to repot and add perlite- ... roots look pretty good actually, so there's likely a pH issue adding to the yellowing problem...soil nute's are usually a slow release source, so that's why they didn't burn at the tips,... BTW, that style probe, the ones with the skinny rod, are lousy for accuracy, so don't trust it! Get an Accurate 8 pH soil meter-- check them out, you'll see the difference right away,...better design,... seedlings like to be kept warm and evenly, consistently moist,... If you have some B1 or Superthrive, that'll help recovery,... question is, how stunted are they! Only time will tell, so it's also good you started a fresh seed! Biobizz is fine, but mild,...