yeah id say its clearly overwatered. put some more holes in the bottom. dont water it every day or even every other day. oncve every four to seven days will be just fine. remember that MJ naturally grows in pretty dry places. so make sure the soil isnt wet. the soil will feel dry when you touch it but this is acually good since the roots need to become stronger and more developed. if they are moist about two inches deep your good. remove the mesh screen or whatever since it isnt going to do anything for microorganisms anyways, maybe bugs. probably just blocking a percentage of the light. what kind of lights are you using?