im trying to age water for 4 days to be use for water changing, and the ph level wont drop lower than 8. the ph in my unchanged tank is arond 8-8.2, and the ph in my aging water jag is also 8-8.2(4 day old). i add a cap full of dechlorinator, air pump, and let it age for 3 to 4 days before its time for water changing. the ph of my water is fine for now with my FH but im planning to raise discus in a few months and ive heard they need water around 6.5 to 7, how in the world can i do this?? is there something i missed? i used beckett dechlorinator that i got at home depot, should i get prime instead?? thanks for reading 
