PH to low

[Slippery]

I just wanted to know if I can add bi carb soda instead of PH up to raise the alkaline levels, the other additives are about 20 times the cost and I think it's just bi carb anyway

 

[Mumma.of.two]

I wouldn't. It would cause a sudden spike in pH this not good for fish or the bacteria. What is your pH? Does it fluctuate?

 

[Florio]

I would just add substrate that gives of calcium and such to raise your ph and gh.

So your ph is nice and constant.

 

[Slippery]

Yes my PH trends acidic in both tanks and I bought PH UP from the pet shop at $20+ per 500g only to find its exactly the same ingredient as bi carb soda you cook with, at $5 a kg. My tank generally runs at 6.8 and adding a teaspoon every couple of days in my 600L tank trying to avoid spikes, I might visit pet shop and get some crushed coral or similar as suggested

 

[foster53]

A PH of 6.8 is fine, unless your trying to keep African cichlids or marine fish. Most of us would love to have a ph like yours. The thing with ph is most fish will do ok, as long as it is constant Fish are very adaptable.

 

[molliwopp]

What are you trying to keep?is this a saltwater tank we're talking about?