my plant seems to have some sort of disease, it has curling leafs, brown stains and the leafs are brittle and crispy. it started 2 days ago. Pics below.
looks to me like you're ph. level is off man... i'd recommend you to get a ph. meter and check that shit, otherwise the plant may die... (im not soo sure on that but it can happen!) good luck man
That looks like more than pH problems. There's a link in a sticky somewhere that has a list of diseases. That is a pretty ugly one.
im getting a pH tester for my soil soon but i also have 5 others going in same conditions and none of them have any of those symptoms so i don't think it is pH problems