What is the rough temperature around/ inside the tank?
When I did my dsm I left the tank at room temperature and sprayed it every few days and it worked a treat..
Did you cover the tank at all? Did you just spray water or fert/water mix?
Sorry Cerven I must have put an unlocked mobile in my pocket, perhaps one of the mods could remove it. Tank looks great by the way. Fingers crossed for the DSM. How long before the flood?
Just sprayed with water and put cling film over the top my hc grew like nothing filled my mini m in about 5 weeks 🙂