Aug 10, 2024 · In this article, we’ll explore the importance of General Hardness (GH) in aquarium water, its role in maintaining a healthy environment for fish, and how to measure and increase levels for optimal fish health.

What’s the difference between them, and how do they impact our fish? This practical guide for beginners explains what these parameters mean, when you should test for them, and how to raise or lower their levels if needed.

Feb 10, 2023 · In this article we will give a complete overview of aquarium GH; what exactly we mean by this, why it is important in the tank environment, how to test and maintain GH levels, and how to increase and lower GH in aquariums.

Apr 16, 2024 · Keeping the right GH (General Hardness) and KH (Carbonate Hardness) levels is key. Did you know the wrong GH and KH can really affect your fish’s health? It’s vital to know and maintain the correct GH and KH for a balanced tank. I’ll help you understand GH, KH, and how they’re linked to pH.

Aug 15, 2020 · However, there are some general rules of thumb like South American fish, crystal shrimp, they like it on the lower pH side versus livebearers, and African Cichlids like it on the higher pH side. Hitting a specific pH number usually isn’t that important if …

“General hardness” (GH) measures the cations (+ charge) for calcium and magnesium as ppm of calcium carbonate (CaCO3) equivalents. There are many terms used interchangeably and often incorrectly for GH. Here is a chart:

Feb 16, 2025 · When it comes to keeping an aquarium, maintaining the right levels of GH (General Hardness) is crucial for the optimal health and well-being of your fish and other aquatic creatures. GH refers to the amount of dissolved minerals, particularly calcium and …

Feb 3, 2025 · GH, or general hardness, refers to the amount of dissolved minerals, primarily calcium and magnesium, in the water. KH, or carbonate hardness, measures the buffering capacity of the water against changes in pH. It is recommended to keep GH between 4-8 dGH and KH between 2-8 dKH.

Feb 28, 2023 · The ideal GH level for most freshwater aquariums ranges between 4 to 8 dGH, although some species of fish may have specific GH requirements that are outside of this range. KH (Carbonate Hardness) measures the buffering …

Apr 7, 2025 · What Should the GH Level be in a Fish Tank? GH is measured in degrees of GH and parts per million (ppm) almost the same way as KH. A GH of 4-8 dGH is ideal for high levels in a fish tank (or 70-140 ppm).