How to Raise PH level?

[Calc]

i just did a 40% water change, and now the ph is like 5-5.5.....
but the fish are doing fine still, how do i raise the ph level?
without puting any chemical in it?
Thanks

 

[varanio]

What was the reason for a 40% change?

 

[haynchinook334]

crushed coral.

 

[Calc]

how many % water change do you guys prefer each week or 2?
Crushed corals..oh..but is that a temporary thing?

 

[xiahaolong168]

crushed coral.

crushed coral works really well for me! I use it as substrate, and mix it in with very fine gravel

 

[haynchinook334]

yeap....you can put the coral in a mesh bag and put in your Hang on the back filter, remove when ever. i do 20% to 40% water change a week.

 

[ericifish]

wheres a good place to get crushed coral. i have the same problem, my water is naturally around 6-6.5

 

[haynchinook334]

wheres a good place to get crushed coral. i have the same problem, my water is naturally around 6-6.5

Local fish stores have them, if not then petsmart or petco has some.

 

[haynchinook334]

wheres a good place to get crushed coral. i have the same problem, my water is naturally around 6-6.5

how far from the beach do you live? you can get some dead pieces of coral from the beach.

 

[varanio]

I sure hope that you posted this in the wrong forum, because channa do not respond well to large water changes and or crushed coral.