First Grow (hopefully Fat) Banana (Auto)

19.04. start germination of 3 freshly bought seeds in waterglass: tap water PH: 6.9 starting water temp: 22°C room temp: 20-22°C glass placed in dark cupboard 21.04. all 3 seeds did germinate in glass one was way ahead with 0.5 cm root. The other two just did crack open and did show a tiny white rooty barely visible - still placed all three in their final 11L pots about 1 fingertip deep left the pots in the room at 22-24°C Did water with the same 6.9PH water from germination glass using spray bottle. first two days probably was way too little water. Only did 3-4 sprays every few hours to keep the surface moist. 23.04. Noticed, that below the surface the earth was quite dry, so I did continue with a lot more sprays till the surface felt really wet, so that the water can perforate into deeper. 24.04. The additional water seemed to work well. All 3 seedlings emerged from the ground in the evening. All 3 were free from seed shell 25.04. Put the seedlings under my SANlight Evo 4x80 at 40% (lamp as high as possible) in the morning Android Photone App did show 20 DLI with 20h light - I chose to set the timer to 18h on and 6h off in a desperate try to reduce the amount of daily light. Huge problems with humidity. cant really get it above 45% without humidifier. Did put a bucket with water into the tent and put a wet towel over it, so that it does touch the water in the middle. it helped to get it from 40-45% in average Did cover the seedlings with an open plastic bottle.. hopefully that bottle does increase humidity inside to at least 50% Room temp 20-24°C Watering every 8h with PH 6.6 tap water. still using spray bottle till the surface feels really wet. 27.04 Nothing changed. Seedling is growing slowly. Guess the low humidity is slowing growth quite a bit, but it is looking good and keeps growing, so I guess it is not too bad. Height: 3.5-4cm