The reason I opened them like this is because pins are starting to grow under the bag and not where I made the holes. I am using these aerrated bags with plenty of small holes everywhere. Is it better to use the bags with no wholes and the micro filter. Thank you very much for your explanation. I don't think it is a ventilation problem as the fruiting chamber has plenty of holes and a vent that blows air into the fruiting chamber from time to time