Low PH

[MadReefer]

Bored today and decided to test my water as I want to get some more coral. Biggest concern is PH its around 7, maybe lower. I sealed the porch windows for the winter and it probably caused the issue of to much carbon dioxide. No window to open for fresh air. Should I dose baking soda to raise it?
Params:
SG - 1.025
Cal - 400
Alk - 9 maybe 10
Nitrate - 20
Phosphate - 0
PH - 7

 

[redfishbluefish]

Mark, your pH can NOT be at 7. Has to be testing error. It's just impossible. In addition, you don't want to chase pH, and baking soda will simply raise your alkalinity, which is already high. If you truly had low pH.....maybe 7.7 or 7.8 (more realistic), that's when you try to reduce carbon dioxide in the tank by aerating the tank with fresh air. Bring a sample of water to a reefer friend and have them test.

 

[eholceker]

PH is definitly higher. It would be impossible to be that low. Your rock would be melting.

 

[MadReefer]

Think I used the 10ml vile and not 5ml. Will double check tomorrow.

 

[MadReefer]

So I did use the correct amount 5ml. I used the tall API tube 1st which may have distorted the color. Today used an old Tetra tube, the square one. The color was darker. Think I need a new PH kit since the original RedSea test tube is lost.

 

[Salted]

So I did use the correct amount 5ml. I used the tall API tube 1st which may have distorted the color. Today used an old Tetra tube, the square one. The color was darker. Think I need a new PH kit since the original RedSea test tube is lost.

Pretty reasonable to think you found your testing problem. When you're going by milliliters and drops you can't deviate from the manufacturers devices.

 

[eholceker]

So I did use the correct amount 5ml. I used the tall API tube 1st which may have distorted the color. Today used an old Tetra tube, the square one. The color was darker. Think I need a new PH kit since the original RedSea test tube is lost.

Honestly no reason to test PH. Save your money.