Not to sure what is happening I think maybe magniusuim really would love help. This is so helpful in learning not just fixing a problem this forum is fantastic you people are amazing for your help!
If you mean the rusty spots, can be a few things...one being your night time temps of 10°C
You feed every 2 days ? do you check weight of pots to see if they need feeding as your temps will keep them wet for a while, this can be another issue...they like wet to almost dry in soil
@zn now i let them dry out for 6 days and im feeding them every 3-5 now depending on how dry it looked but no i havent been checking on the weight of the pots they are the airpots though the ones with all the holes. I am using a soil called bat special sorry for the late reply i had to do my 12 hour nightshift and then got back and crashed
@countreeboyz Air pots not best for soil, water likes holes, lol...
You can tell when they are dry by the weight of the pots, lift a wet one to give you an idea...and 9 litres, I would guess maybe 3 days in that environment