thanks for ur replys guys .. well as a percaution i called my local hyro store i explained u guys thouth it was thrips i told him the spots was sort of white yellow and silverish.. he said its not mites becoz there is no webs.. and that ur probly right and it is infact thrips.. but he said as they are 5weeks in to 12/12 that i should not spray them with anythin.. he said the plants will be ok probly finish earlier becoz of the stress... he said if i see any mites or any webs bettween the leaves to go and see him and he will sort me out.. but as i see no webs im hopin i will be ok.. he said allso that when i cut the plants the thrips will all go to the top of the plant and fall off if thats what i have... so is takin no action the right move??anyways here is a pic of 1 of my babys a 4weeks 12/12