help 10 days plants getting yellow on the new leaves

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Please someone can help me , this is smal plants have 10 days , was planted strait from seeds are liberty haze , early thai , Og kush ! have 400 wats hqi on them alreday watered with iguana grow 2 ml per litre , b52 1,5 ml per litre , vodooo juice 1,5 ml per litre , 3 times per week with tap wather ph of 6.5 with Aqua safe for cleaning cloride ploblems ...doing good but the new leaves is turning very yellow , what it can be guys? please help me, thanks!!
obs - only start fertilizing after first 5 days of grow,
soil mix - Sunshine mix 4 , Perlite , Wrom Castings , Black Dirt , Bone Meal ....thanks!

to much water, or nutes burn i wouldn't even give them any nutrients until there atleats 2weeks old

No food, water only gotta get hungry before u eat

thanks for reply! i will whait to full dry the buckets ( maybe 2, 3 days) and them only feed them with tap wather with AQUA SAFE with ph , 6.5 ... is that ok ?

Do not do anything to the water and most of all don't add any nutrients, bad idea. Let the water sit overnight to get it at a good PH and itll cleanse all chlorine.

you may want to flush these or transplant them in new soil. the fert amount you're describing is for a foot 30cm plant. not sure what aqua safe is and ph is tricky you may have a concentration of one nute in there anyways. distilled water will work and transplanting will save your dirt for bigger better days

yeah lots of fert in the first days.... , i should whaited until week 2 or 3 to give them smal amount of food ..... i will flush them with normal tap wather, first will let the wather sit for 24 hours like samster said,( will make more dry the buckets also ) and flush them ... lets see wahts heppen.... and about the Bone meal , i have used like 5 %, 9 % in the hole soil mix... is that bad ?

also my tap wather strait from the tap here is at 32 ppm , i am using a hanna ec tds metter, is this good ??