I have a 30 gal
tank with mostly brackish fish but I don't add any salt. It has a regular filter that hangs in the back of the tank with activated charcoal and I run a powerhead pump every few days to move the water and it helps keep the water clean. I also added some Pothos plants and a moss ball to help clean the water. I don't do water changes often, maybe once every couple of weeks, and I add water every week.
It seems like my nitrates and nitrites are great, however the GH
high and KH
is low are confusing me and the PH is rather low. I know that the city has increased the PH to over 8 to stop the pipes from leeching lead until they are able to replace all the galvanized steel main pipes that have some lead in them.
The first picture is the water in my tank, the second is my tap water. The tap water has a high KH
high PH and low KH
My fish seem fine, I haven't had any fish or snail die except for the ghost shrimp that are either hiding or someone's been eating them.
IS my water ok, do I need to do any changes?