browning tips

in my 5th week of flowering and some of the upper leaves of my plants are all green except the tips which are brownish purple.. it doesnt look as though they are dead... most of the others are yellowing as they suck out the nitrogen... is this a deficiency?

yeah, maybe more info

possibly overferted? begining stages.

sorry, i will psot some pics with them too...

I havent really been giving them too much nutes to be honest, I give them 1 table spoon per 1 L waterbottle, the equivlancy of 4 per gallon--usen foxfarm bloom.

They are halfway through their 5th week of flowering, and were really healthy not too long ago.. I tested the PH of the soil and it seems about neutral, I tried flushing... really unsure what could be going on here and im a little worried. The yellowing, i undertand, is natural towards the latter part of flower, but this brown really came out of nowehre...

im usen t5 fluro lamps that dont get very hot at all, the plants can almost touch the tubes, I can touch the tubes without getting burned...

That's your prob. Are you sure your supposed to use a tablespoon and not a teaspoon? Read it again. 5ml is a teaspoon...

errm thats what I meant. I use the smaller of the two, teaspoon...

They were brownen/purple so I flushed them then after the flush they looked WORSE so I did research and thought it was a phosphorus deficiency which may have come because I flushed all the nutes out of my soil, so I gave it a half teaspoon of nutes, incase they didnt need more it wouldnt eradicate them...

anyways, I cant tell if they are getting better, do you think the damage is irreprable? Should I cut the fan leaves? Im freaken out, that plants was my favorite one and the furthest along in maturity. the buds dont look affected but overall the leaves are all funky colored now

I wouldn't worry to much. You have only 3 weeks or so left. It doesn't look like the plant is in that much peril. Keep an eye on it and keep us posted....