GinnyFinny
Aquarium Advice Apprentice
I noticed in the last 6 days my GH had doubled from 75 to 150 ppm. The alkalinity (KH) has gone from 40 to 70 ppm. During this time I've done two 15% water changes (20 gallon long) and only addition was 1.6 ml of Flourish. All other test results have been totally normal.
I did my last water change on Friday night. Previous one was March 9th. Any suggestions as what to do? Oh yeah, I added another power filter on the 11th (an AquaClear 20 to my existing AquaClear 30). Could this be a bio problem? I obviously used tank water to rinse media and fill reservoir.
I did my last water change on Friday night. Previous one was March 9th. Any suggestions as what to do? Oh yeah, I added another power filter on the 11th (an AquaClear 20 to my existing AquaClear 30). Could this be a bio problem? I obviously used tank water to rinse media and fill reservoir.