Bigge_al
Aquarium Advice Activist
I have noticed that some of my fish after a water change do some flashing and rubbing on decorations. I did a 60-70% PWC with prime added to get my Nitrates down. The bad side to this is the pH will be lowered for awhile since the water I add is at 6.7 and rises to 7.4 after awhile once added to tank. Do you think the PWC causes the flashing and rubbing or should look at other causes. I thought I saw a sign of stringy poop but it only happened once and I added peas to the tank thinking constipation.
