need a bit of advice with some Melocactus discoformis seedlings,i planted two lots a couple of days apart,at day 3 after germination all the green seedlings of both lots have turned rusty brown although they appear to be still growing,are they dead? if so does anyone know what turns them brown,they were germinated in 50/50 cactus mix/sand in take away containers with daily watering,the lids were taken of at germination
thanks for your help