this is only the 2nd time I've done my water change since doing my switch to a sand subtrate two weeks ago. I am using the "plastic fork" method and pretty much combing the sand....there are air bubbles coming up everywhere...I'm assuming thats what I am suppose to do. Sorry if it's a stupid quesiton, but like I said it's only the 2nd time i've done it. am I doing it right??
also, do you need to keep raking the sand until ALL the air bubbles are out of the sand every week? or just get a majority of them??