Ph low, help

[heavenkid]

Guys, recently just did a test on my 1.5 ft tank, ph read 5.5... Which is quite low... Nw I just keep yamato with us fissden, mini us fissiden, pelia and flame moss with chiller set at 25'c.. My mini us fissiden is turning brown, I wonder izzit the ph prob? My lighting is 48watt pl with t5... Co2 1bps.. Soil I using gex..

So I dnt quite understand why my ph so low... Anyone can advise? Water change is done once a wk,15%

[juggler]

Have you tried anything to buffer the pH so far?
- adding baking soda or
- adding coral chips/sea shells to your canister filter

[JasonChan]

hi would like to know also how to increase PH level the safe way thanks. Is adding coral skeleton and sea shell the best way? Can i get it easily in LFS ?

[Fuzzy]

Most LFS will sell coral chips, and yes it is a safe way to increase pH levels in your tank, what pH are your trying to maintain?

[JasonChan]

Thanks Fuzzy

just want to share, added coral skeletons and active carbon into my Atman CF-600 and it had two tray so one for each tray .Before adding the coral skeleton and active carbon my ph is 5.0, now its 6.8 it work