yo your plant looks fine when there young they ge lil yellow spots lil brown on the eges i woudlent worry about it unless its comin off the new growth so keep an eye of it for sue but smoke a fatty with her. i just had a plant do the same thing till about 4 weeeks now and the leafs were 30 worse thin yoursand now im pullin clones off her. and aboutt he watering u wonna water it slowly so the lil foam thigs arnt flotin but u want a lil wter to come out the bottem good luck man and were in the chat all the time come cheack it out