Mold smell sometimes from plants?

My plants are in week 4 flower No signs of mold but last night before lights came on had a bad mold smell but a couple hours later when on no smell, this morning back moldy smell, no water leak is it just the plants giving off this smell or should I treat for mold

Get a dehumidifier in there STAT... Set it on ON for a day or so, and then set it at 50%..... Make sure you check it to empty it everyday... This will help DRASTICLY

I got a nice dehumidifier at Lowe's for like $125. Works perfect!!!

Thanks for the info got one running now hope I'm not too late

some strains smell like rotting fruit when they flower. baby poo too!

have you inspected the nugs to make sure therres no mold on the insides of the nugs?

I've looked at all of them very closely no spots but I haven't cut any of them open or anything my humidity is now 50% and declining

No mold smell for the last couple days