unknown problem with plants pics

[Hotbox]

Hey

im a noob.

posted a thread a few weeks back regarding slow growing plants that were outside.. I was advised to bring them indoors and grow them for a few weeks so i did.

These plants were started about 5-6 weeks ago and were put under a 400 W HPS last thursday on 18/6. Before they were put under the lights they were still only fairly small, but within the past week they have grown noticeably much faster. They have been fed with seaweed concentrate over the last few weeks and yesterday they were fertilized with yates organic liquid fertilizer which had a combination of different fertilizers and has a high nitrogen rating. We thought we fertilized it with a quarter strength then today noticed the leaves turning up at the edges and a few brown spots and thought maybe we stuffed it and accidently did full strength... dont ask. So we flushed it in a panic and now looking back it seems that it might not be nute burn haha. These are some pictures after flushing it.

 

Anyone know whats up with them?

The light is about 50-60 cm above the plants, and a fan has been blowing on them constantly.. which we moved now so it's not facing directly at them. the temp ranges from 25-31 degrees celcius. pretty sure they're white russians too.

For all i know they could be perfectly fine.

Edited October 14, 2009 by Hotbox

[Hotbox]

can't fit the pictures all in one

[420 HELI]

I can't see any brown spots, they don't look too bad... maybe heat stress causing the edges to curl.

 

Do you have an oscilating fan going in the room?

 

Wouldn't worry too much, mine did that for a while.

 

[brick]

Ditto what heli said. The fan blowing directly on them can dry them out a bit.

[Hotbox]

thanks lads!

yeah sorry the pictures are a bit shit, the brown spots were on a smaller one that seems to be a bit mutant. i will try get some better pictures tomorrow to see what you all think of them.

cheers