What Should The GH Level Be In A Fish Tank?
Ideally, freshwater aquariums have a GH between 4-8 dGH (or 70-140 ppm) All animals need some minerals, but certain fish like livebearers, goldfish, and African cichlids prefer higher GH levels. If you’re trying to breed discus or other soft water fish, you may need to reduce the GH to 3 dGH (or 50 ppm) or … Read more