need help

hey all
this is my first try. The edge of 2 bottom leaves showed light green since germination. now the problem s getting worse. the color is changing to light yellow and the edge is curling upwards a bit. I would like to know the cuases & solutions before it dies thxs!
 

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are u using nutes already if so dont its
still to young

thanks , thats what i m thinking because another one , which is a week older than this one, is growing great in the same soil with same lv nutes. how can i solve the problem? by flushing water?
thanks again
 
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