BioTabs Grow (Nasha Genetics & Barney's)

Lollipopped in the middle of the third week. Added 500ml water plus 10ml Bio PK 5/8 and 2.5ml/l Orgatrex ONCE per plant. Watering every two days around 2l water. Sometimes more, sometimes less and sometimes also the next day again a bit- just how it seems to me. Two small fans blow air backwards below the leaf line and slightly upwards. Above the lamp, also at the front, there is a swivel fan in the corner which blows air downwards. The Fat Freddy's Cat are all between 88-97cm tall. The Mimosa X Orange Punch are between 83-90cm high The London Pound Cake X Zoap is 33cm tall (but also 1.5 weeks younger and shorter in flower) It has become much colder outside, at night a small additional heater has to run in the room (outside the tent). One plant at the back got a too big stretch. I hope it's over, because the Tent is only 2m high and It don't have any more space to lift the LED. Also I wanted to set the light at 100%, from the 4.flowering week but the plant already shows light stress, I will consider, what I will do against it.