beginner to fish
Fish Fanatic
hiya i have just checked my ph level on a tank that has been running for ages there is no fish in there are three live plants in it i was going to put some discus in it but the ph is at 6 how do i raise the ph so that it is between 6.5 and 7. as i was going to add discus tomorow but will they be ok in it with this ph

