got white tips on leaves/ but they havent had any nutes yet ! why wud this be ?

hi peeps got some white tip goin on, i repotted my girls 5 days ago and waterd them with plain water ph around 6.5 under 600 watt hps 30 inches from light plenty of ventilation temps max at 85f but usually its 80, temps drop to around 74 when lights r off did not add no nutes so wondering whats causing the tips to go white, even the new leaves coming through are white !!
ANY IDEAS PEEPS !!

Anyone any sugestions please

i have seen white tips in a few grows, never had it myself
doesn't sound like light bleaching with 30 inches of space from the bulb
the bulb spacing sounds a bit more than you need
might be a genetic quirk, not sure if this is a problem

Photos will help immensely. How old is the plant? What stage is it in? The only thing I can think of with white tips would be a Potassium deficiency. But they would also be yellowing and getting spots on the fan leaves. A photo would definitely help for this diagnosis.

404NotFound said:

Photos will help immensely. How old is the plant? What stage is it in? The only thing I can think of with white tips would be a Potassium deficiency. But they would also be yellowing and getting spots on the fan leaves. A photo would definitely help for this diagnosis.

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soz for the l8 reply i aint got a camera at the min so i cant get a decent pic but tried on my fone not so gr8 but u may b able to see the white tips if u look closely, thanx for ur reply man

growone said:

i have seen white tips in a few grows, never had it myself
doesn't sound like light bleaching with 30 inches of space from the bulb
the bulb spacing sounds a bit more than you need
might be a genetic quirk, not sure if this is a problem

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m8 i wud like to have my light closer but my temps r a little on the high side so tend to keep the canopy a bit higher to reduce the temps slightly, at the min my temps r 78 ish if i lower the light to say 18 inch then my temps will shoot up to 82 ish, but winter is comin fast so temps soon will no longer be a prob, thanx for ur reply man !!!

i'd call it a non problem, at least for the moment
maybe something isn't perfect, high temps possible, i'd say watch and wait