My comm tank

[albertlow]

Originally Posted by zaynalib

5 xb size 16 to 20"
1 it 12"
1 tfb 10"

How is your water condition like? crystal clear or white cloudy?
Can post a picture for reference?

[Brichardi]

If all else fail, put some coral chips (very cheap...1pack few $ only) inside couple trays of OHF. However, looking at your setups, I'm still puzzled how you manage to achieve constant PH at 5-ish with regular WC though.....farm water or Singapore water is 7-ish le.

[farish]

Originally Posted by zaynalib

Bros/sis i habe a prob with my PH level..
Always 5.3
I regularly do wc every 2 days once
Add in 5kg oyster shell ..
Can any master help me out ? Tia

Keep adding coral chips until you reach desired ph and then stop adding the coral chips.

If ph continues go up, remove some coral chips until you reach an equilbrium.

[Epon]

Better add cc or OS till u get 6.5

BTW u feed heavily?

If u want can use the baking soda powder to buffer ph everytume u change water.. but must be careful.. add a little bit like a half a teaspoon for every 2hr until ur desire ph.. then remembered how much powder u need for the atm of water change. . And add the baking soda every time u change water.

Too much trouble for me.. so I prefer to add OS.

[Epon]

Baking soda use by many people here.. don't buy wrong one