Vinegar Dosing & Tangs

[Cscultho]

I've been vinegar dosing for the past several weeks and had to stop since I've notice my two tangs growing white spots on them. Since I've stopped dosing the white is going away.

Is this normal?

Im trying to bring my NO3 down from 20ppm to ~5ppm. Water changes alone have not moved the NO3 level down much so i decided to try Vinegar.

I'm puzzled.

 

[Randy Holmes-Farley Verified Community Expert]

It is not normal, and likely not directly related if you are dosing reasonable amounts. How much to how large of tank volume?

 

[Cscultho]

It is not normal, and likely not directly related if you are dosing reasonable amounts. How much to how large of tank volume?

I have around 60-65 gallons of water DT and sump. i started at 5ml and ramped up to 30ml over 2 weeks.

 

[Randy Holmes-Farley Verified Community Expert]

I have around 60-65 gallons of water DT and sump. i started at 5ml and ramped up to 30ml over 2 weeks.

That’s not an excessive dose and tang problems are rarely mentioned by users (if ever).