I had them indoors for veg, but they got too smelly so i decided to put them out the back in the shed. but it is really cold here atm so i put it in the rubish bin to keep the heat from the lamp in and also i dont have a reflector so the rubish bin helps with that too. seems to be working fine.
There is a "Moat" like thing at the bottom of the bin so all the water goes in there. if it fills up i just pour it out. easy.
ummm, how long has this been in flower?? i hope you have others.....i see like 2 calyx/hairs.
the yellowing looks like just heat stress. there are prob so many issues w/ your soil/nutes i wouldnt kno where to begin. did u even mention what soil u use, nutes etc??