Running some autos in soilless mix with Grow dots. Plants in question are in 5 gallon sip style buckets. One is mixed with 3 tablespoons and the other at 4 tablespoons of grow dots. Temp is at 80. RH is 50%. CO2 is at 1000 ppm and light is around 1200 ppfd. Plants are dark green and clawing at the tips. Any suggestions on how to correct would be helpful.