Strawberry Banana

Seed was germinated in paper towel, between 2 plates and in a zip ziploc bag. Tent was kept around 27°C. My first grow using strictly reverse osmosis water (tap water no good). Rockwool cube soaked in 5.5ph r.o water for 24 hours, then in nutrient water (6.0ph/100ppm) for 2 hours prior to transplanting seed into rockwool cube.