Support » The Fish Doctor » Diagnose what’s wrong » High pH levels

Our Diagnosis

It sounds like your aquarium is alkaline and has high pH levels 

How to be sure

Your test results show alkaline or high pH levels (above 8.5) and your aquarium generally looks ok – this is an invisible water quality problem.  Your fish won’t like it – they may appear pale or dark and shimmy, scratch, jump and flick against objects in the aquarium.  Rapid gill movement and breathing at the water surface are also signs of your fish’s discomfort.

Step 1 – Treat your aquarium

Step 2 – Support your fish

  • Dose with Aquilibrium First Aid Salt â€“ it helps boost your fish’s ability to cope in these stressful conditions.
  • If your fish are gasping at the surface, increase oxygen levels by adding an air pump.
Scroll to Top