Hi so my plants are 3 week old was doing good until this started to appear on my plants can anyone help with this ive struggled with temps has got up to 90f in room its hot here in uk running fresh air in and exhaust out to try snd cool room i have a fan pionting at plants just above to cool them they have had one feed .6ml biobizz grow to 2 litres of water shared the 2 litres of water with 4 plants some help here would be great ?
Water every 2 days ph 6.5
Grow in air pots
Biobizz light mix
300 watt cfl has you can see the yellowing on new groth is thi a heat issue or nutrient issue ?
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